#include <cstdio>
#include <cstring>
#include <string>
#include <cmath>
#include <cassert>
#include <iostream>
#include <algorithm>
#include <stack>
#include <queue>
#include <vector>
#include <set>
#include <map>
#include <bitset>
#include <functional>
using namespace std;

#define repl(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define rep(i,n) repl(i,0,n)
#define mp(a,b) make_pair((a),(b))
#define pb(a) push_back(a)
#define all(x) (x).begin(),(x).end()
#define dbg(x) cout<<#x"="<<(x)<<endl
#define fi first
#define se second

#define INF 2147483600

const string muri = "mourennaihasimasenn";

// a*x + b*y = gcd(a, b)
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(){
  int x,y,z;
  cin>>x>>y>>z;

  int a,b;
  int g = extgcd(x, y, a, b);
  // ax + by = g

  if(z%g!=0){
    cout<<muri<<endl;
    return 0;
  }

  string push="", pop="";
  bool flg=false;
  string xx="c", yy="w";
  if(x<y){ swap(x,y); swap(xx,yy); }
  if(z > x){
    rep(i, z/x){
      push += xx;
      pop += "C";
    }
    z = z%x;
    flg=true;
  }
  if(z > y){
    rep(i, z/y){
      push += yy;
      pop += "C";
    }
    z = z%b;
    flg=true;
  }
  if(z==0){
    cout<<push<<pop.substr(1)<<endl;
    return 0;
  }
  string res;
  if(flg) res = push + pop.substr(1);

  push="";pop="";
  if(a<0){
    rep(i,-a) push += "c";
    rep(i,-a) pop = "W" + pop;
  }
  if(b<0){
    rep(i,-b) push += "w";
    rep(i,-b) pop = "W" + pop;
  }
  if(a>0){
    rep(i,a) push += "c";
    rep(i,a) pop = "C"+pop;
  }
  if(b>0){
    rep(i,b) push += "w";
    rep(i,b) pop = "C"+pop;
  }
  pop = pop.substr(1);

  rep(i,z/g){
    res += push + pop;
    if(i!=0) res += "C";
  }
  if(flg) res += "C";

  if(res.size()>10000) cout<<muri<<endl;
  else cout<<res<<endl;

  // 0入力のチェック！

  return 0;
}