/*#include <stdio.h>int main(){ int a,c; char b; scanf("%d%c%d",&a,&b,&c); if(b=='+') { printf("%d",a+c); } else if(b=='-') { printf("%d",a-c); } else if(b=='*') { printf("%d",a*c); } if(b=='/') { printf("%.2f",(float)a/c); } return 0;}*/