import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.NoSuchElementException; import java.util.Stack; public class Main { void check(String str,long x,long y,long z) { ArrayDeque stack=new ArrayDeque<>(); for (char c:str.toCharArray()) { if (c=='c') stack.addFirst(x); else if(c=='w') stack.addFirst(y); else if(c=='C') { long a=stack.pollFirst(); long b=stack.pollFirst(); stack.addFirst(a+b); tr(stack.size(),stack.peekFirst()); } else if(c=='W') { long a=stack.pollFirst(); long b=stack.pollFirst(); stack.addFirst(a-b); } }//3331 assert stack.peekFirst()==z:stack.peekFirst()+"!="+z; } void run() { FastScanner sc=new FastScanner(); PrintWriter pw=new PrintWriter(System.out); ArrayList positive=new ArrayList<>(); ArrayList negative=new ArrayList<>(); long x=sc.nextLong();//c long y=sc.nextLong();//w long z=sc.nextLong(); if (y==0) { x^=y;y^=x;x^=y; } if (x==y&&y==z&&z==0) { System.out.println("c"); return; } // StringBuilder sb=new StringBuilder(); // x*a+y*b==z for (int a=-10000;a<=10000;++a) { long b=(z-x*a)/y; if (x*a+y*b!=z) continue; if (2*(Math.abs(a)+Math.abs(b))-1>10000) continue; for (int i=0;i0) positive.add("c"); else negative.add("c"); } for (int i=0;i0) positive.add("w"); else negative.add("w"); } if (negative.size()>0) { for (String s:negative) { pw.print(s); // sb.append(s); } pw.print("C".repeat(negative.size()-1)); // sb.append("C".repeat(negative.size()-1)); } for (String s:positive) { pw.print(s); // sb.append(s); } pw.print("C".repeat(positive.size()-1)); // sb.append("C".repeat(positive.size()-1)); if (negative.size()>0) pw.print("W"); // if (negative.size()>0) sb.append("W"); // check(sb.toString(),x,y,z); pw.close(); return; } pw.println("NO"); pw.close(); } void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));} public static void main(String[] args) { new Main().run(); } } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; }else{ ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;} public boolean hasNext() { skipUnprintable(); return hasNextByte();} public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while(isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while(true){ if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; }else if(b == -1 || !isPrintableChar(b)){ return minus ? -n : n; }else{ throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { return (int)nextLong(); } }