#include <stdio.h>

int main() {
    int P1, C1, P2, C2;
    scanf("%d", &P1);
    scanf("%d", &C1);
    scanf("%d", &P2);
    scanf("%d", &C2);
    if(P1*C1==P2*C2){
        printf("0");
    }
    else if(P1*C1>P2*C2){
        printf("-1");
    }
    else{
        printf("1");
    }
    return 0;
}