2 files changed, 5 insertions, 2 deletions
diff --git a/main/core/parser/ast/AdditionNode.java b/main/core/parser/ast/AdditionNode.java
index 3117e41..f6ebc84 100644
--- a/main/core/parser/ast/AdditionNode.java
+++ b/main/core/parser/ast/AdditionNode.java
@@ -29,6 +29,8 @@ public class AdditionNode extends ExpressionNode {
 
     @Override
     public DataContainer evaluate() {
-        return null;
+        DataContainer lhs = this.lhs.evaluate();
+        DataContainer rhs = this.rhs.evaluate();
+        return lhs.add(rhs);
     }
 }
diff --git a/main/core/parser/ast/IntegerLiteralNode.java b/main/core/parser/ast/IntegerLiteralNode.java
index b68adf0..d2fceb1 100644
--- a/main/core/parser/ast/IntegerLiteralNode.java
+++ b/main/core/parser/ast/IntegerLiteralNode.java
@@ -1,6 +1,7 @@
 package com.jantuomi.interpreter.main.core.parser.ast;
 
 import com.jantuomi.interpreter.main.core.parser.datatype.DataContainer;
+import com.jantuomi.interpreter.main.core.parser.datatype.IntegerDataContainer;
 import com.jantuomi.interpreter.main.core.tokenizer.token.Token;
 
 import java.util.Arrays;
@@ -25,6 +26,6 @@ public class IntegerLiteralNode extends ExpressionNode {
 
     @Override
     public DataContainer evaluate() {
-        return null;
+        return new IntegerDataContainer(data);
     }
 }