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1056A - Determine Line.cpp
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1056A - Determine Line.cpp
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#include<bits/stdc++.h>
#define endl '\n'
#define ll long long int
#define loop(i,a,b) for(ll i=a;i<=b;++i)
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define clr(x) x.clear()
#define MOD 1000000007
#define itoc(c) ((char)(((int)'0')+c))
#define vl vector<ll>
#define SZ(x) (x).size()
#define all(p) p.begin(),p.end()
#define mid(s,e) (s+(e-s)/2)
#define sv() ll t,n; scanf("%lld",&t);n=t; while(t--)
#define tcase() ll t,n; cin>>t;n=t; while(t--)
#define iscn(num) scanf("%d",&num);
#define scn(num) scanf("%lld",&num);
#define dbg(x) cout <<"( "<<#x << " = " << x << " )"<<endl
using namespace std;
const ll INF = 2e18 + 99;
typedef pair<ll,ll> Pair;
typedef vector<ll> vec;;
void FAST_IO();
////////////////////////
int main()
{
ll n;
scanf("%lld",&n);
vec lines(101,0);
for(int i=0; i< n; i++){
ll t,temp;
scn(t);
while(t--){
scn(temp);
lines[temp]++;
}
}
for(int i=0; i< 101; i++){
if(lines[i]==n)
printf("%d ",i);
}
printf("\n");
return 0;
}
void FAST_IO()
{
// ios_base::sync_with_stdio(0);
//cin.tie(NULL);
//cout.tie(NULL);
//cout.setf(ios::fixed);
//cout.precision(2);
}