#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

typedef int _loop_int;
#define REP(i,n) for(_loop_int i=0;i<(_loop_int)(n);++i)
#define FOR(i,a,b) for(_loop_int i=(_loop_int)(a);i<(_loop_int)(b);++i)
#define FORR(i,a,b) for(_loop_int i=(_loop_int)(b)-1;i>=(_loop_int)(a);--i)

#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()

#define CHMIN(a,b) a=min((a),(b))
#define CHMAX(a,b) a=max((a),(b))

// mod
const ll MOD = 1000000007ll;
#define FIX(a) ((a)%MOD+MOD)%MOD

// floating
typedef double Real;
const Real EPS = 1e-11;
#define EQ0(x) (abs(x)<EPS)
#define EQ(a,b) (abs(a-b)<EPS)
typedef complex<Real> P;

int main(){
  ll x,y,z;
  cin>>x>>y>>z;
  if(z==0){
    puts("wwW");
    return 0;
  }
  FOR(a,-10000,10001){
    // ax + by = z
    ll ax = a*x;
    ll by = z - ax;
    ll b;
    if(y==0){
      if(by != 0)continue;
      b = 0;
    }else{
      if(by % y != 0)continue;
      b = by / y;
    }
    ll cnt = abs(a)+abs(b);
    if(2*cnt-1 <= 10000){
      // yattaze.
      if(a<0){
        REP(i,abs(a))putchar('c');
        REP(i,b)putchar('w');
        REP(i,b-1)putchar('C');
        REP(i,abs(a))putchar('W');
        putchar('\n');
      }else if(b<0){
        REP(i,abs(b))putchar('w');
        REP(i,a)putchar('c');
        REP(i,a-1)putchar('C');
        REP(i,abs(b))putchar('W');
        putchar('\n');
      }else{
        REP(i,a)putchar('c');
        REP(i,b)putchar('w');
        REP(i,a+b-1)putchar('C');
        putchar('\n');
      }
      return 0;
    }
  }
  puts("mourennaihasimasenn");
  return 0;
}