// yukicoder: No.438 Cwwプログラミング入門
// 2019.6.27 bal4u

#include <stdio.h>

typedef long long ll;

#if 1
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif
int in()    // 非負整数の入力
{
	int n = 0, c = gc();
	do n = 10 * n + (c & 0xf); while ((c = gc()) >= '0');
	return n;
}

#define ABS(x)  ((x)>=0?(x):-(x))
void pcs(int n, char c) { while (n--) pc(c); }
void outs(char *s) { while (*s) pc(*s++); pc('\n'); }
int extended_gcd(int a, int b, int *x, int *y) {
	int d;
	if (b == 0) { *x = 1; *y = 0; return a; }
	d = extended_gcd(b, a%b, y, x);
	*y -= a / b * (*x);
	return d;
}

int x, y, z;
int a, b, d;
ll X, Y;

ll calc(int s) {
	X = (z/d)*(ll)a - (y/d)*(ll)s;
	Y = (z/d)*(ll)b + (x/d)*(ll)s;
	return ABS(X) + ABS(Y);
}

int findMin(int l, int r) {
	int m;
	while (r-l > 1) {
		m = (l + r) >> 1;
		if (calc(m) - calc(m-1) < 0) l = m;
		else r = m;
	}
	return l;
}

int main()
{
	int s;

	x = in(), y = in(), z = in();
	if (x == 0 && y == 0) {
		if (z == 0) { outs("ccC"); return 0; }
		goto err;
	}
	if (x == 0) {
		if (z % y == 0 && z / y <= 5000) {
			pcs(z/y, 'w'), pcs(z/y-1, 'C'), pc('\n');
			return 0;
		}
		goto err;
	}
	if (y == 0 || x == y) {
		if (z % x == 0 && z / x <= 5000) {
			pcs(z/x, 'c'), pcs(z/x-1, 'C'), pc('\n');
			return 0;
		}
		goto err;
	}
	if (z == 0) { outs("ccW"); return 0; }

	d = extended_gcd(x, y, &a, &b);
	if (z % d) goto err;
		
	s = findMin(-100000005, 100000005);
	if (calc(s) > 5000) goto err;
	x = (int)X, y = (int)Y;

	if (x < 0) {
		x = -x;
		pcs(x, 'c'), pcs(y, 'w');
		pcs(y-1, 'C'), pcs(x, 'W');
	} else if (y < 0) {
		y = -y;
		pcs(y, 'w'), pcs(x, 'c');
		pcs(x-1, 'C'), pcs(y, 'W');
	} else {
		pcs(x, 'c'), pcs(y, 'w');
		pcs(x+y-1, 'C');
	}
	pc('\n');
	return 0;
err: outs("NO");
	return 0;
}