#include<bits/stdc++.h>

using namespace std;

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;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int a, b, c;
    cin >> a >> b >> c;
    int x, y;
    int d = extgcd(a, b, x, y);
    string s = "";
    if (c % d != 0) s = "mourennaihasimasenn";
    else {
        x *= c / d;
        y *= c / d;
        if (x + y > 5000) s = "mourennaihasimasenn";
        else {
            if (x < 0) {
                x = -x;
                for (int i = 0; i < y; i++) s += "w";
                for (int i = 0; i < y - 1; i++) s += "C";
                for (int i = 0; i < x; i++) s += "c";
                for (int i = 0; i < x - 1; i++) s += "C";
                s += "W";
            } else {
                for (int i = 0; i < x; i++) s += "c";
                for (int i = 0; i < x - 1; i++) s += "C";
                if (y < 0) {
                    y = -y;
                    for (int i = 0; i < y; i++) s += "w";
                    for (int i = 0; i < y - 1; i++) s += "C";
                    s += "W";
                } else {
                    for (int i = 0; i < y; i++) s += "w";
                    for (int i = 0; i < y - 1; i++) s += "C";
                    s += "C";
                }
            }
        }
    }
    cout << s << endl;
    return 0;
}