#include <stdio.h>

int main(){

    FILE * fptr;
    FILE * fptr1;
    int teste;
    int port1, port2;
    int ban1, ban2;
    fptr = fopen("fructe.in","r");
    fptr1 = fopen("fructe.out","w");

    fscanf(fptr,"%d",&teste);
    fscanf(fptr,"%d %d",&port1, &ban1);
    fscanf(fptr,"%d %d",&port2, &ban2);

    if ( port1 == 0 && ban1 == 0){
        fprintf(fptr1,"%d",1);
    } else if ( port2 == 1 && ban2 == 0 ){
        fprintf(fptr1,"%d",0);
    }




    return 0;
}