diff --git a/pom.xml b/pom.xml
index d101620..552549f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>ru.spbstu</groupId>
     <artifactId>kotlin-pandoc</artifactId>
-    <version>0.0.10-SNAPSHOT</version>
+    <version>0.0.11-SNAPSHOT</version>
     <scm>
         <url>https://github.com/belyaev-mikhail/kotlin-pandoc</url>
         <connection>scm:git:git@github.com:belyaev-mikhail/kotlin-pandoc.git</connection>
@@ -12,7 +12,7 @@
     </scm>
 
     <properties>
-        <kotlin.version>1.3.61</kotlin.version>
+        <kotlin.version>1.3.72</kotlin.version>
         <jackson.version>2.10.2</jackson.version>
     </properties>
 
diff --git a/src/main/kotlin/ru/spbstu/pandoc/builder/BlockBuilder.kt b/src/main/kotlin/ru/spbstu/pandoc/builder/BlockBuilder.kt
index 9f92001..a74017b 100644
--- a/src/main/kotlin/ru/spbstu/pandoc/builder/BlockBuilder.kt
+++ b/src/main/kotlin/ru/spbstu/pandoc/builder/BlockBuilder.kt
@@ -12,6 +12,10 @@ sealed class BlockBuilderBase {
     private val list: MutableList<Block> = mutableListOf()
     fun build(): List<Block> = list
 
+    operator fun Block.unaryPlus() { list.add(this) }
+    operator fun Iterable<Block>.unaryPlus() { list.addAll(this) }
+    operator fun Sequence<Block>.unaryPlus() { list.addAll(this) }
+
     fun plain(body: InlineBuilder.() -> Unit) {
         list += Block.Plain(inlines(body))
     }
@@ -90,3 +94,5 @@ fun blocks(body: BlockBuilder.() -> Unit): List<Block> {
     builder.body()
     return builder.build()
 }
+
+fun block(body: BlockBuilder.() -> Unit): Block = blocks(body).single()
diff --git a/src/main/kotlin/ru/spbstu/pandoc/builder/InlineBuilder.kt b/src/main/kotlin/ru/spbstu/pandoc/builder/InlineBuilder.kt
index 075d0ca..6fce014 100644
--- a/src/main/kotlin/ru/spbstu/pandoc/builder/InlineBuilder.kt
+++ b/src/main/kotlin/ru/spbstu/pandoc/builder/InlineBuilder.kt
@@ -12,6 +12,9 @@ sealed class InlineBuilderBase {
     operator fun String.unaryPlus() {
         list += Inline.Str(this)
     }
+    operator fun Inline.unaryPlus() { list.add(this) }
+    operator fun Iterable<Inline>.unaryPlus() { list.addAll(this) }
+    operator fun Sequence<Inline>.unaryPlus() { list.addAll(this) }
 
     fun str(text: () -> String) {
         list += Inline.Str(text())
@@ -89,3 +92,5 @@ fun inlines(body: InlineBuilder.() -> Unit): List<Inline> {
     builder.body()
     return builder.build()
 }
+
+fun inline(body: InlineBuilder.() -> Unit): Inline = inlines(body).single()