diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..1a4446c
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,5 @@
+{
+    "files.associations": {
+        "queue": "cpp"
+    }
+}
\ No newline at end of file
diff --git "a/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/1431.cpp" "b/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/1431.cpp"
new file mode 100644
index 0000000..2acc3f3
--- /dev/null
+++ "b/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/1431.cpp"
@@ -0,0 +1,43 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+bool cmp(const string &s1, const string &s2){
+    if(s1.size()!=s2.size()){
+        return s1.size()<s2.size();
+    }
+    int s1_sum=0, s2_sum=0;
+    for(int i=0;i<s1.size();i++){
+        if('0'<=s1[i] && s1[i]<='9'){
+            s1_sum+=s1[i]-'0';
+        }
+        if('0'<=s2[i] && s2[i]<='9'){
+            s2_sum+=s2[i]-'0';
+        }
+    }
+    if(s1_sum!=s2_sum){
+        return s1_sum<s2_sum;
+    }
+    return s1<s2;
+}
+
+int main(){
+    
+    int n;
+    cin >> n;
+    
+    vector<string> arr(n);
+    for(int i=0;i<n;i++){
+        cin >> arr[i];
+    }
+    
+    sort(arr.begin(), arr.end(), cmp);
+    
+    for(int i=0;i<arr.size();i++){
+        cout << arr[i] << '\n';
+    }
+    
+    return 0;
+}
\ No newline at end of file
diff --git "a/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/14425.cpp" "b/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/14425.cpp"
new file mode 100644
index 0000000..0a727ef
--- /dev/null
+++ "b/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/14425.cpp"
@@ -0,0 +1,33 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+int main(){
+    
+    ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+    
+    int n, m, num;
+    string stm;
+    
+    cin >> n >> m;
+    
+    vector<string> arr(n);
+    for(int i=0;i<n;i++){
+        cin >> arr[i];
+    }
+    sort(arr.begin(), arr.end());
+    
+    for(int i=0;i<m;i++){
+        cin >> stm;
+        if(binary_search(arr.begin(), arr.end(), stm)){
+            num++;
+        }
+    }
+    
+    cout << num;
+    
+    return 0;
+}
\ No newline at end of file
diff --git "a/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/19636.cpp" "b/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/19636.cpp"
new file mode 100644
index 0000000..e50c1a6
--- /dev/null
+++ "b/01_\354\240\225\353\240\254_\353\247\265_\354\205\213/19636.cpp"
@@ -0,0 +1,46 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+
+int main(){
+    int w1, day_eat, diet_eat, diet_ex, n, tr;
+    
+    cin >> w1 >> day_eat >> tr;
+    cin >> n >> diet_eat >> diet_ex;
+    
+    int day_life=day_eat;
+    int diet_life=day_life;
+    int w0=w1;
+    int tr_w;
+    
+    for(int i=0;i<n;i++){
+        tr_w=diet_eat - diet_life - diet_ex;
+        w1+=tr_w;
+        if (abs(tr_w)>tr){
+            diet_life+=floor(tr_w/2.0);
+        }
+        w0+=diet_eat - day_life - diet_ex;
+    }
+    
+    if(w0<=0){
+        cout<<"Danger Diet" << '\n';
+    }
+    else{
+        cout << w0 << ' ' << day_life << '\n';
+    }
+    
+    if(diet_life<=0 || w1<=0){
+        cout << "Danger Diet" << '\n';
+    }
+    else{
+        if(day_life > diet_life){
+            cout << w1 << ' ' << diet_life << ' ' << "YOYO" << '\n';
+        }
+        else{
+            cout << w1 << ' ' << diet_life << ' ' << "NO" << '\n';
+        }
+    }
+    
+    return 0;
+}
\ No newline at end of file
diff --git "a/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/10757.cpp" "b/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/10757.cpp"
new file mode 100644
index 0000000..85070df
--- /dev/null
+++ "b/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/10757.cpp"
@@ -0,0 +1,54 @@
+/******************************************************************************
+
+Welcome to GDB Online.
+GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
+C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
+Code, Compile, Run and Debug online from anywhere in world.
+
+*******************************************************************************/
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+int main()
+{
+    string a, b, ab_total;
+    int a_digit, b_digit, a_b, ab_over=0;
+    char ab_char;
+    
+    cin >> a >> b;
+    
+    int a_size=a.size();
+    int b_size=b.size();
+    
+    while (a_size>0||b_size>0){
+        if(a_size>0){
+            a_digit=a[--a_size]-'0';
+        }
+        else{
+            a_digit=0;
+        }
+        if(b_size>0){
+            b_digit=b[--b_size]-'0';
+        }
+        else{
+            b_digit=0;
+        }
+        a_b=a_digit+b_digit+ab_over;
+        ab_over=a_b/10;
+        a_b%=10;
+        ab_char=a_b+'0';
+        ab_total+=ab_char;
+    }
+    if(ab_over!=0){
+        ab_char=ab_over+'0';
+        ab_total+=ab_char;
+    }
+    
+    for(int i=ab_total.length()-1;i>=0;i--){
+        cout << ab_total[i];
+    }
+
+    return 0;
+}
\ No newline at end of file
diff --git "a/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/1158.cpp" "b/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/1158.cpp"
new file mode 100644
index 0000000..ecfd03f
--- /dev/null
+++ "b/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/1158.cpp"
@@ -0,0 +1,35 @@
+#include <iostream>
+#include <queue>
+
+using namespace std;
+
+int main(){
+
+    int n, k;
+    
+    cin >> n >> k;
+    queue<int> q;
+    
+    for(int i=1;i<=n;i++){
+        q.push(i);
+    }
+    
+    cout << "<";
+    
+    while(!q.empty()){
+        for(int i=1;i<k;i++){
+            q.push(q.front());
+            q.pop();
+        }
+        if(q.size()!=1){
+            cout << q.front() << ", ";
+            q.pop();
+        }
+        else{
+            cout << q.front() << ">";
+            q.pop();
+        }
+    }
+    
+    return 0;
+}
\ No newline at end of file
diff --git "a/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/4949.cpp" "b/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/4949.cpp"
new file mode 100644
index 0000000..6555d74
--- /dev/null
+++ "b/02_\354\212\244\355\203\235_\355\201\220_\353\215\261/4949.cpp"
@@ -0,0 +1,57 @@
+#include <iostream>
+#include <stack>
+#include <string>
+
+using namespace std;
+
+int main(){
+    
+    ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+    
+    while(true){
+        
+        string str;
+        stack<char> s;
+        bool result=true;
+        
+        getline(cin, str);
+        
+        if(str[0]=='.'){
+            break;
+        }
+        
+        for(int i=0;i<str.length();i++){
+            if(str[i]=='('||str[i]=='['){
+                s.push(str[i]);
+            }
+            else if(str[i]==')'){
+                if(s.empty()||s.top()=='['){
+                    result=false;
+                    break;
+                }
+                else{
+                    s.pop();
+                }
+            }
+            else if(str[i]==']'){
+                if(s.empty()||s.top()=='('){
+                    result=false;
+                    break;
+                }
+                else{
+                    s.pop();
+                }
+            }
+        }
+        
+        if(!s.empty()||result==false){
+            cout << "no" << '\n';
+        }
+        else{
+            cout << "yes" << '\n';
+        }
+    }
+    
+    return 0;
+}
\ No newline at end of file