929

//929
#include <cstdio>

int main(void) {
    FILE* fin = fopen("input.txt", "r");
    FILE* fout = fopen("output.txt", "w");

    int n, k;
    fscanf(fin, "%d%d", &n, &k);
    fclose(fin);
    int out = (n + k - 1) % 5;
    if (out == 0) out = 5;
    fprintf(fout, "%d\n", out);
    fclose(fout);
    return 0;
}