#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
//#define int long long
using namespace std;
typedef long long ll;

int x, y, z;

int extgcd(int a, int b, int& x, int& y) {
	int d = a;
	if (b != 0) {
		d = extgcd(b, a % b, y, x);
		y -= (a / b) * x;
	} else {
		x = 1; y = 0;
	}
	return d;
}

signed main()
{
	cin >> x >> y >> z;

	for (int a=-3500; a<=3500; a++) {
		for (int b=-3500; b<=3500; b++) {
			if (a * x + b * y == z) {
				int a_len = 0;
				int w_num1 = 0;
				int c_num1 = 0;
				int W_num1 = 0;
				int C_num1 = 0;
				if (a < 0) {
					int abs_a = abs(a);
					c_num1 = abs_a + 2;
					W_num1 = abs_a + 1;
					a_len = c_num1 + W_num1;
				} else if (a > 0) {
					c_num1 = a;
					C_num1 = a - 1;
					a_len = c_num1 + C_num1;
				}

				int w_num2 = 0;
				int c_num2 = 0;
				int W_num2 = 0;
				int C_num2 = 0;
				int b_len = 0;
				if (b < 0) {
					int abs_b = abs(b);
					w_num2 = abs_b + 2;
					W_num2 = abs_b + 1;
					a_len = w_num2 + W_num2;
				} else if (b > 0) {
					w_num2 = b;
					C_num2 = b - 1;
					b_len = w_num2 + C_num2;
				}

				if (a_len + b_len + 1 <= 10000) {
					rep(i,c_num1) cout << 'c';
					rep(i,W_num1) cout << 'W';
					rep(i,C_num1) cout << 'C';

					rep(i,w_num2) cout << 'w';
					rep(i,W_num2) cout << 'W';
					rep(i,C_num2) cout << 'C';

					cout << 'C' << endl;
					return 0;
				}
			}
		}
	}

	cout << "mourennaihasimasenn" << endl;
}