diff --git a/ex1.cpp b/ex1.cpp
index 6f8af76..5f40ed0 100644
--- a/ex1.cpp
+++ b/ex1.cpp
@@ -2,6 +2,15 @@
  
  int main(){
      printf("hello world");
+     
+     int x= 1;
+     printf("%d",x);
+
+     puts("hogehoge");
+
+     x*=x;
+
+     x /= 3;
 
      return 0;
- }
\ No newline at end of file
+ }