#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;

const int MAX = 10000;

string solve(int x, int y)
{
    if(x < 0){
        string s = solve(y, x);
        for(unsigned i=0; i<s.size(); ++i){
            if(s[i] == 'c')
                s[i] = 'w';
            else if(s[i] == 'w')
                s[i] = 'c';
        }
        return s;
    }

    string ans;
    if(y < 0){
        ans = string(-y, 'w') + string(x, 'c') +
              string(x - 1, 'C') + string(-y, 'W');
    }
    else{
        ans = string(x, 'c') + string(y, 'w') +
              string(x + y - 1, 'C');
    }
    return ans;
}

int main()
{
    long long x, y, z;
    cin >> x >> y >> z;
    if(x == 0 && y == 0){
        if(z == 0)
            cout << "c" << endl;
        else
            cout << "mourennaihasimasenn" << endl;
        return 0;
    }

    for(int i=-MAX; i<=MAX; ++i){
        long long a = z - x * i;

        long long j = 0;
        if(y == 0){
            if(a != 0)
                continue;
        }
        else{
            if(a % y != 0)
                continue;
            j = a / y;
            if((abs(i) + abs(j)) * 2 - 1 > MAX)
                continue;
        }

        string ans = solve(i, j);
        cout << ans << endl;
        return 0;
    }

    cout << "mourennaihasimasenn" << endl;
    return 0;
}