#include<iostream>
#include<vector>
#include<string>
#include<cstring>
#include<algorithm>
#include<map>
#include<set>

using namespace std;
typedef long long ll;

int main() {
	ll x, y, z;
	cin >> x >> y >> z;
	for (int i = 0; i < 6000; ++i) {
		ll tmp = i*x;
		if (tmp > z) {
			ll rest = tmp-z;
			if (rest%y == 0) {
				ll j = rest/y;
				if (2*i+2*j-2 <= 10000) {
					string ans;
					for (int k = 0; k < j; ++k)
						ans += 'w';
					for (int k = 0; k < i; ++k)
						ans += 'c';
					for (int k = 0; k < i-1; ++k)
						ans += 'C';
					for (int k = 0; k < j-1; ++k)
						ans += 'W';
					cout << ans << endl;
					return 0;
				}
			}
		} else if (tmp == z) {
			string ans;
			for (int k = 0; k < i; ++k)
				ans += 'c';
			for (int k = 0; k < i-1; ++k)
				ans += 'C';
			cout << ans << endl;
			return 0;
		} else {
			ll rest = z-tmp;
			if (rest%y == 0) {
				ll j = rest/y;
				if (2*i+2*j-2 <= 10000) {
					string ans;
					for (int k = 0; k < j; ++k)
						ans += 'w';
					for (int k = 0; k < i; ++k)
						ans += 'c';
					for (int k = 0; k < i+j-1; ++k)
						ans += 'C';
					cout << ans << endl;
					return 0;
				}
			}
		}
	}
	cout << "mourennaihasimasenn" << endl;
	return 0;
}