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