#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(){ int a,b; char op; cin>>a>>op>>b; if(op=='+') cout<<a+b; else if(op=='-') cout<<a-b; else if(op=='*') cout<<a*b; else cout<<a/b; return 0; }