#include <bits/stdc++.h>
using namespace std;

pair<long long, long long> extgcd(long long a, long long b, long long c) {
	if (b == 0) return make_pair(c, 0);
	long long x, y;
	tie(x, y) = extgcd(b, a % b, c);
	return make_pair(y, x - a / b * y);
}

int gcd(int x, int y) {
	if (y == 0) return x;
	return gcd(y, x % y);
}

string create(int x, char c) {
	if (x >= 10100) x = 10100;
	string s = "";
	for (int i = 0; i < x; i++) s += c;
	for (int i = 0; i < x - 1; i++) s += 'C';
	return s;
}

int main() {
	int x, y, z;
	cin >> x >> y >> z;

	int g = gcd(x, y);

	if (z % g != 0) {
		cout << "mourennaihasimasenn" << endl;
		return 0;
	}

	x /= g;
	y /= g;
	z /= g;

	long long a, b;
	tie(a, b) = extgcd(x, y, z);

	string ans;
	if (b == 0) {
		ans = create(abs(a), 'c');
	} else if (a == 0) {
		ans = create(abs(b), 'w');
	} else if (a > 0 && b > 0) {
		ans = create(abs(a), 'c') + create(abs(b), 'w') + "C";
	} else if (a < 0) {
		ans = create(abs(b), 'w') + create(abs(a), 'c') + "W";
	} else if (b < 0) {
		ans = create(abs(a), 'c') + create(abs(b), 'w') + "W";
	}
	if (ans.size() > 10000) {
		cout << "mourennaihasimasenn" << endl;
	} else {
		cout << ans << endl;
	}
}