diff --git a/src/funcs.cpp b/src/funcs.cpp
index 20ed2565477c99acb446c561906f80c4ca2c579c..1eafd06a158bc04f03d1278e045c6b89e4f01d7e 100644
--- a/src/funcs.cpp
+++ b/src/funcs.cpp
@@ -1,7 +1,7 @@
 #include<iostream>
 using namespace std;
 
-int add(int a,int b){return a-b;}
+int add(int a,int b){return a+b;}
 int sub(int a,int b){return a-b;}
 int mul(int a,int b){return a*b;}
 int  dv(int a,int b){