using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Text;

class Iroha
{
    public Iroha() { }
    public static int Main()
    {
        new Iroha().calc();
        return 0;
    }

    Scanner cin;

    long x, y, z;

    //こういう分かりにくい出力ってあんまり良くないと思いますよ？
    string NG = "mourennaihasimasenn";

    void calc()
    {
        cin = new Scanner();
        x = cin.nextLong();
        y = cin.nextLong();
        z = cin.nextLong();
        long p = 0, q = 0;
        if (z == 0)
        {
            Console.WriteLine("");
            return;
        }
        if(x == 0 && y == 0)
        {
            Console.WriteLine(NG);
            return;
        }
        if(x == 0)
        {
            if(z % y == 0 && z / y < 5001)
            {
                StringBuilder tsb = new StringBuilder();
                tsb.Append('w');
                for (int i = 1; i < z / y; i++)
                {
                    tsb.Append("wC");
                }
                Console.WriteLine(tsb.ToString());
            }
            else Console.WriteLine(NG);
            return;
        }
        if (y == 0)
        {
            if (z % x == 0 && z / x < 5001)
            {
                StringBuilder tsb = new StringBuilder();
                tsb.Append('c');
                for (int i = 1; i < z / x; i++)
                {
                    tsb.Append("cC");
                }
                Console.WriteLine(tsb.ToString());
            }
            else Console.WriteLine(NG);
            return;
        }

        extgcd(x, y, ref p, ref q);
        long g = gcd(x, y);
        
        if(z % g != 0)
        {
            Console.WriteLine(NG);
            return;
        }
        p *= (z / g);
        q *= (z / g);
        //return;

        while (Math.Abs(p) + Math.Abs(q) > Math.Abs(p + (y / g) * 10000) + Math.Abs(q - (x / g) * 10000))
        {
            p += (y / g) * 10000;
            q -= (x / g) * 10000;
        }

        while (Math.Abs(p) + Math.Abs(q) > Math.Abs(p - (y / g) * 10000) + Math.Abs(q + (x / g) * 10000))
        {
            p -= (y / g) * 10000;
            q += (x / g) * 10000;
        }


        while (Math.Abs(p) + Math.Abs(q) > Math.Abs(p + y / g) + Math.Abs(q - x / g))
        {
            p += y / g;
            q -= x / g;
        }

        while (Math.Abs(p) + Math.Abs(q) > Math.Abs(p - y / g) + Math.Abs(q + x / g))
        {
            p -= y / g;
            q += x / g;
        }

        StringBuilder sb = new StringBuilder();
        int WCount = 0;
        int firstadd = 0;

        while (sb.Length <= 10000 && p < 0)
        {
            sb.Append('c');
            WCount++;
            p++;
        }

        while (sb.Length <= 10000 && q < 0)
        {
            sb.Append('w');
            WCount++;
            q++;
        }

        while (sb.Length <= 10000 && p > 0)
        {
            sb.Append('c');
            if (firstadd != 0)
            {
                sb.Append('C');
            }
            else firstadd++;
            p--;
        }

        while (sb.Length <= 10000 && q > 0)
        {
            sb.Append('w');
            if (firstadd != 0)
            {
                sb.Append('C');
            }
            else firstadd++;
            q--;
        }

        sb.Append(new string('W', WCount));


        if (sb.Length > 10000) Console.WriteLine(NG);
        else Console.WriteLine(sb.ToString());

    }

    //swap
    void swap<T>(ref T a, ref T b)
    {
        T c = a;
        a = b;
        b = c;
    }

    long gcd(long a, long b)
    {
        return b != 0 ? gcd(b, a % b) : a;
    }
    long lcm(long a, long b)
    {
        return a * b / gcd(a, b);
    }

    // a x + b y = gcd(a, b)
    long extgcd(long a, long b, ref long x, ref long y)
    {
        long g = a; x = 1; y = 0;
        if (b != 0) {
            g = extgcd(b, a % b, ref y, ref x);
            y -= (a / b) * x;
        }
        return g;
    }


}


class Scanner
{
    string[] s;
    int i;

    char[] cs = new char[] { ' ' };

    public Scanner()
    {
        s = new string[0];
        i = 0;
    }

    public string next()
    {
        if (i < s.Length) return s[i++];
        string st = Console.ReadLine();
        while (st == "") st = Console.ReadLine();
        s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
        i = 0;
        return next();
    }

    public int nextInt()
    {
        return int.Parse(next());
    }

    public long nextLong()
    {
        return long.Parse(next());
    }

    public double nextDouble()
    {
        return double.Parse(next());
    }

}