#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,s; char d; cin>>a>>d>>s; switch(d) { case '+': cout<<a+s<<endl; break; case '*': cout<<a*s<<endl; break; case '-': cout<<a-s<<endl;; break; case '/': cout<<a/s<<endl; break; } return 0; }