217

//217
#include <cstdio>

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

    char n[11];
    fscanf(fin, "%s", n);
    fclose(fin);
    for (int i = 1; n[i] != 0; ++ i) {
        n[i] -= n[i - 1];
        if (n[i] < 0)
            n[i] = 10 + n[i];
        n[i] += 0x30;
    }
    fprintf(fout, "%s\n", n);
    fclose(fout);
    return 0;
}