#include <stdio.h>

int main(void)
{
    int A, B, C;
    scanf("%d %d %d", &A, &B, &C);
    for(int N = 1; N < 200000; N++)
    {
        if((N * A - B == C) || (N * A == C))
        {
            printf("%d\n", N);
        }
    }
    return 0;
}