#include<stdio.h>
int main(){
    int a,b,;
    scanf("%d %d",&a,&b);
    
    if(a < 0 || b < 0 || a + b >= 108)
       printf("Inavalid input");
    else {
       c = 108 -(a + b);
       printf("%d",180 - (a+b));
    }
    
    return 0;
}