#!/usr/bin/env python3
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines


# %%
x, y, z = map(int, read().split())


# %%
def simulate(code):
    stack = []
    for ch in code:
        if ch == 'c':
            stack.append(x)
        elif ch == 'w':
            stack.append(y)
        elif ch == 'C':
            a = stack.pop()
            b = stack.pop()
            stack.append(a + b)
        elif ch == 'W':
            a = stack.pop()
            b = stack.pop()
            stack.append(a - b)
        else:
            raise ValueError
    return stack[-1]



def to_code(A, B):
    if A == B == 0:
        return 'ccW'
    if A == 0 and B > 0:
        return 'w' * B + 'C' * (B - 1)
    if A > 0 and B == 0:
        return 'c' * A + 'C' * (A - 1)
    if A > 0 and B > 0:
        return 'c' * A + 'w' * B + 'C' * (A + B - 1)
    if A > 0 and B < 0:
        return 'w' * (-B) + 'C' * (-B - 1) + 'c' * A + 'C' * (A - 1) + 'W'
    if A < 0 and B > 0:
        return 'c' * (-A) + 'C' * (-A - 1) + 'w' * B + 'C' * (B - 1) + 'W'


def solve(x, y, z):
    for A in range(-5100, 5100):
        B = (z - A * x) // y
        if A * x + B * y == z:
            if 2 * (abs(A) + abs(B)) - 1 <= 10000:
                return to_code(A, B)
    return 'NO'


code = solve(x, y, z)
if code != 'NO':
    assert simulate(code) == z
print(code)