#include<stdio.h>
int main()
{
    int angle1,angle2;
    scanf("%d %d",&angle1,&angle2);
    if(angle1<=0 || angle2<=0 || angle1 >=100 || angle2 >=100 || (angle1 + angle2) >= 100);
    {
        printf("Invalid input\n");
    }
    else
    {
        int angle3 = 180 - (angle1 + angle2);
        printf("%d\n",angle3);
    }
    return 0;
}