#define _USE_MATH_DEFINES
#include<iostream>
#include<sstream>
#include<vector>
#include<string>
#include<algorithm>
#include<map>
#include<unordered_map>
#include<math.h>
#include<iterator>

using namespace std;
long long dp[1<<12+1];

template<typename T>
T gcd( T m, T n )
{
  // 引数に０がある場合は０を返す
  if ( ( 0 == m ) || ( 0 == n ) )
    return 0;

  // ユークリッドの方法
  while( m != n )
  {
    if ( m > n ) m = m - n;
    else         n = n - m;
  }
  return m;
}

template<typename T>
T* hoge( T m, T n )
{
  T* ans = new T[3];
  T d[2]={m,n};
  T x[2]={1,0};
  T y[2]={0,1};
  while(d[1]!=0){
    T q = d[0]/d[1];
    T tmp =d[0];
    d[0]=d[1];
    d[1]=tmp%d[1];
    tmp = x[0];
    x[0]=x[1];
    x[1]=tmp-q*x[1];
    tmp = y[0];
    y[0]=y[1];
    y[1]=tmp-q*y[1];

    ans[0]=x[0];
    ans[1]=y[0];
    ans[2]=d[0];
  }
  return ans;
}

template<typename T>
T value(T a,T b,T c,T t,T u,T v){
  return abs(b*t+u*c) + abs(-a*t+v*c);
}
int main(){
  string fuck="mourennaihasimasenn";
  long long x,y,z;
  cin >> x >> y >> z;
  long long xygcd=gcd(x,y);
  if( z % xygcd!= 0){
    cout <<fuck<<endl;
    return 0;
  }
  x/=xygcd;
  y/=xygcd;
  z/=xygcd;
  long long *ho = hoge(x,y);
  long long a,b,c,u,v;
  a = x/ho[2];
  b = y/ho[2];
  c = z/ho[2];
  u = ho[0];
  v = ho[1];

  long long lmin=-10000000000;
  long long lmax= 10000000000;
  for (int i = 0; i < 100000; i++) {
    long long center1 = (lmax-lmin)/3+lmin;
    long long center2 = (lmax-lmin)/3*2+lmin;
    if(value(a,b,c,center1,u,v)>value(a,b,c,center2,u,v)){
      lmin = center1;
    }else{
      lmax = center2;
    }
  }

  int prefix = (lmin+lmax)/2;
  int buf = 100000;
  for (int i = -buf; i < buf; i++) {
    long long t =prefix+i;
    if(value(a,b,c,t,u,v)>5010)continue;
    string output;
    for (int j = 0; j < abs(b*t+u*c); j++) {
      output+='c';
    }
    if(b*t+u*c<0){
      output+='c';
      output+='c';
      for (int j = 0; j < abs(b*t+u*c)+1; j++) {
        output+='W';
      }
    }else{
      for (int j = 0; j < abs(b*t+u*c)-1; j++) {
        output+='C';
      }
    }

    for (int j = 0; j < abs(-a*t+v*c); j++) {
      output+='w';
    }

    if(-a*t+v*c<0){
      for (int j = 0; j < abs(-a*t+v*c)-1; j++) {
        output+='W';
      }
    }else{
      for (int j = 0; j < abs(-a*t+v*c)-1; j++) {
        output+='C';
      }
    }
    output+='C';
    if(output.length()<10000){
      cout << output<<endl;
      return 0;
    }
  }
  cout << fuck<<endl;
}