#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main (void) {
	int a, b, n;
	char buf[128];
	char * cp = buf;
	fgets(buf, 128, stdin);
	buf[128] = '\0';
	a = strtol(cp, &cp, 10);
	if (!cp)
		return 1;
	cp++;
	b = strtoll(cp, &cp, 10);
	if (!cp)
		return 2;
	n = strtol(cp, &cp, 10);
	if (a == 0) {
		puts("5\n");
		return 0;
	}
	if (b%a) {
		puts("No solution\n");
		return 0;
	}
	b /= a;
	for (int i = -1000; i <= 1000; i++) /* mam 2 sekundi */
		if (pow(i, n) == b) {
			printf("%d\n", i);
			return 0;
		}
	puts("No solution\n");
	return 0;
}