#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ char op; int a,b; cin>>a>>op>>b; switch(op) { case '+': cout<<a+b<<endl; break; case '-': cout<<a-b<<endl; break; case '*': cout<<a*b<<endl; break; case '/': cout<<a/b<<endl; break; } return 0; }