#include <stdio.h> #include <stdlib.h> int Equals(long double a, long double b) { return (a - b > -1e-10) && (a - b < 1e-10); } int main() { int c; while(scanf(" 1/%d", &c) > 0) { int rsl = 0; for(int a = c + 1; a <= c * 2; a++) { int b = (a * c) / (a - c); if(c * (a + b) == a * b) { //printf("1/%d + 1/%d = 1/%d\n", a, b, c); rsl++; } } printf("%d\n", rsl); } return 0; }