#include <cstdio>
#include <algorithm>
#include <iostream>
#include <vector>
#include <string>
#include <typeinfo>
using namespace std;



int main(void){
  
  int i,l,r,k,t,j,tmp;
  int x,y,z;
  int a,b;
  int am,bm;

  cin>>x>>y>>z;
  a=-1;
  for(i=-5000;i<=5000;i++){
    if((z-i*x)%y==0) {a=i; break;}
  }
  if(a==-1) {
    cout<<"mourennaihasimasenn"<<endl;
    return 0;
  }

  b=(z-a*x)/y;
  am=1;bm=1;
  if(a<0) am=-1;
  if(b<0) bm=-1;

  a=abs(a);  
  b=abs(b);  
  
  j=0;k=0;
  if(a!=0) {
    cout<<"c";
    j=1;
  }
  else if(b!=0) {
    cout<<"w";
    k=1;
  }
  
  for(i=1;i<2*a+2*b-1;i++){
    if(j<a){
      cout<<"c";
      if(am==-1) cout<<"W";
      else cout<<"C";
      j++;
    }
    else if(k<b){
      cout<<"w";
      if(bm==-1) cout<<"W";
      else cout<<"C";
      k++;
    }
  }
  cout<<endl;
  return 0;
}