diff --git a/src/main/c/BasicMode.c b/src/main/c/BasicMode.c
index 0b1bc48..d11cb42 100644
--- a/src/main/c/BasicMode.c
+++ b/src/main/c/BasicMode.c
@@ -2,7 +2,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <math.h>
-#include <stdio.h>
+#include "BasicMode.h"
 
 
 // convert decimal to binary
@@ -32,3 +32,18 @@ long long int BinToDec(long long int n) {
 
     return  dec;
 }
+//addition
+long long int addition(long long int a, long long int b) {
+    long long int dec1, dec2;
+    dec1 = BinToDec(a);
+    dec2 = BinToDec(b);
+    dec1 = dec1 + dec2;
+    dec2 = DecToBin(dec1);
+
+    return dec2;
+}
+
+int main() {
+
+    return 0;
+}