#include <cstdio>

typedef long long   signed int LL;

#define incID(i, l, r) for(LL i = (l); i < (r); i++)
#define inc(i, n) incID(i, 0, n)

template<typename T> void swap(T &x, T &y) { T t = x; x = y; y = t; return; }
template<typename T> T abs(T x) { return (0 <= x ? x : -x); }

// ---- ----

const LL maxv = 10000;

int main() {
	LL x, y, z;
	scanf("%lld%lld%lld", &x, &y, &z);
	
	if(z == 0) {
		printf("ccW\n");
		return 0;
	}
	
	inc(a, maxv) {
	inc(b, maxv) {
		if( 2 * (a + b) - 1 <= maxv &&  (abs(- a * x + b * y) == z || a * x + b * y == z) ) {
			bool flag_2 = (a * x + b * y == z);
			bool flag = ( ! flag_2 && (- a * x + b * y == z) );
			if( ! flag) { swap(a, b); }
			
			inc(i, a) { printf(flag ? "c" : "w"); }
			inc(i, b) { printf(flag ? "w" : "c"); }
			inc(i, b) { printf(i == 0 ? "" : "C"); }
			inc(i, a) { printf(flag_2 ? (i == 0 && b == 0 ? "" : "C") : "W"); }
			printf("\n");
			
			return 0;
		}
	}
	}
	
	printf("mourennaihasimasenn\n");
	
	return 0;
}