x, y, z = map(int, raw_input().split())

def print_ans(a, b, w):
    a_op = 'C' if a > 0 else 'W'
    b_op = 'C' if b > 0 else 'W'
    if a> 0:
        print 'c' + (('c'+a_op)*(abs(a)-1) + ('w'+b_op)*abs(b))*w
    else:
        print 'w' + (('w'+b_op)*(abs(b)-1) + ('c'+a_op)*abs(a))*w

for a in xrange(-5000, 5000):
    for b in xrange(-5000+abs(a), 5000-abs(a)):
        c = a*x+b*y
        if c > 0 and z % c == 0:
            if a != 0 and b != 0:
                if 2*(abs(a)+abs(b))*(z/c)-1 <= 10000:
                    print_ans(a, b, z/c)
                    exit()