#include <stdio.h>
#include <stdlib.h>

int main() {
    long long Gx, Gy;
    scanf("%lld %lld", &Gx, &Gy);

    if (Gx == 0 && Gy == 0) {
        printf("0\n");
    } else if (Gx == 0 || Gy == 0) {
        printf("1\n");
    } else if (llabs(Gx) == llabs(Gy)) {
        printf("1\n");
    } else {
        printf("2\n");
    }

    return 0;
}