#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

int main(){
  long x,y,z;
  cin>>x>>y>>z;

  int best=5001, bestA=0, bestB=0;
  for(long a=-5000; a<=5000; a++){
    long tmp = z - a*x;
    if(tmp!=0 && tmp%y==0 && abs(tmp/y)+abs(a)<best){
      best = abs(tmp/y)+abs(a);
      bestA = a;
      bestB = tmp/y;
    }
  }

  if( best==5001 || (x==0 && y==0 && z==0) ){
    cout<<"mourennaihasimasenn"<<endl;
    return 0;
  }

  int p=-1,m=0;
  if(bestA<0){
    rep(i,-bestA) printf("c");
    m += -bestA;
  }
  if(bestB<0){
    rep(i,-bestB) printf("w");
    m += -bestB;
  }
  if(bestA>0){
    rep(i, bestA) printf("c");
    p += bestA;
  }
  if(bestB>0){
    rep(i, bestB) printf("w");
    p += bestB;
  }
  rep(i, p) printf("%c", 'C');
  rep(i, m) printf("%c", 'W');
  printf("\n");

  return 0;
}