import std.conv, std.functional, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.container, std.math, std.numeric, std.range, std.regex, std.typecons;
import core.bitop;

class EOFException : Throwable { this() { super("EOF"); } }
string[] tokens;
string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; }
int readInt() { return readToken.to!int; }
long readLong() { return readToken.to!long; }
real readReal() { return readToken.to!real; }

bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } }
bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } }

int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1; (unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; }
int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); }
int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); }


enum M = 5000;

long X, Y, Z;

void main() {
  try {
    for (; ; ) {
      X = readLong();
      Y = readLong();
      Z = readLong();
      
      string ans = "NO";
      if (Z == 0) {
        ans = "ccW";
        goto done;
      }
      foreach (a; 0 .. M + 1) foreach (b; 0 .. M + 1) {
        if (a + b <= M && a * X + b * Y == Z) {
          ans = "";
          foreach (_; 0 .. a) ans ~= "c";
          foreach (_; 0 .. b) ans ~= "w";
          foreach (_; 0 .. a + b - 1) ans ~= "C";
          goto done;
        }
      }
      foreach (a; 0 .. M + 1) foreach (b; 0 .. M + 1) {
        if (a + b <= M && a * X - b * Y == Z) {
          ans = "";
          foreach (_; 0 .. b) ans ~= "w";
          foreach (_; 0 .. a) ans ~= "c";
          foreach (_; 0 .. a - 1) ans ~= "C";
          foreach (_; 0 .. b) ans ~= "W";
          goto done;
        }
      }
      foreach (a; 0 .. M + 1) foreach (b; 0 .. M + 1) {
        if (a + b <= M && -a * X + b * Y == Z) {
          ans = "";
          foreach (_; 0 .. a) ans ~= "c";
          foreach (_; 0 .. b) ans ~= "w";
          foreach (_; 0 .. b - 1) ans ~= "C";
          foreach (_; 0 .. a) ans ~= "W";
          goto done;
        }
      }
     done:
      writeln(ans);
    }
  } catch (EOFException e) {
  }
}