#include <stdio.h>
//#include<string.h>
int main() {
    int a,b;
    scanf("%d%d",a,b);
    char oper;
    scanf("%c\n",oper);
    switch(oper){
       case '+':
       printf("Addition is:%d",a+b);
       case '-':
       printf("Subtraction is:%d",a-b);
    }
    
}