package main

import (
	"bufio"
	"os"
	"strconv"
	"strings"
	"fmt"
)

func mak(a, b int) string {

	ans := ""
	if a > 0 && b > 0 {
		return "c" + strings.Repeat("cC", a - 1) + strings.Repeat("wC", b)
	} else if a > 0 {
		ans += "w"
		ans += strings.Repeat("wC", abs(b) - 1) + "c" + strings.Repeat("cC", a - 1) + "W"
	} else {
		ans += "c"
		ans += strings.Repeat("cC", abs(a) - 1) + "w" + strings.Repeat("wC", b - 1) + "W"
	}

	return ans
}
func main() {
	sc := NewScanner()
	x, y, z := sc.NextInt(), sc.NextInt(), sc.NextInt()

	NO := "mourennaihasimasenn"
	if x == 0 && y == 0 {
		fmt.Println("ccC")
		return
	}
	if y == 0 {
		if 2 * x + 1 <= z && z % x == 0 {
			fmt.Println("c" + strings.Repeat("cC", z / x - 1))
		} else {
			fmt.Println(NO)
		}
		return
	}

	for a := -5000; a <= 5000; a++ {
		b := (z - a * x) / y
		if 2 * abs(a) + 2 * abs(b) - 1 > 10000 {
			continue
		}

		fmt.Println(mak(a, b))
		return

	}
	fmt.Println(NO)
}

func abs(a int) int {
	if a < 0 {
		return -a
	}
	return a
}

func min(a int, b int) int {
	if a < b {
		return a
	}
	return b
}

type Scanner struct {
	r   *bufio.Reader
	buf []byte
	p   int
}

func NewScanner() *Scanner {
	rdr := bufio.NewReaderSize(os.Stdin, 1000)
	return &Scanner{r:rdr}
}
func (s *Scanner) Next() string {
	s.pre()
	start := s.p
	for ; s.p < len(s.buf); s.p++ {
		if s.buf[s.p] == ' ' {
			break
		}
	}
	result := string(s.buf[start:s.p])
	s.p++
	return result
}
func (s *Scanner) NextLine() string {
	s.pre()
	start := s.p
	s.p = len(s.buf)
	return string(s.buf[start:])
}
func (s *Scanner) NextInt() int {
	v, _ := strconv.Atoi(s.Next())
	return v
}
func (s *Scanner) NextInt64() int64 {
	v, _ := strconv.ParseInt(s.Next(), 10, 64)
	return v
}

func (s *Scanner) NextIntArray() []int {
	s.pre()
	start := s.p
	result := []int{}
	for ; s.p < len(s.buf) + 1; s.p++ {
		if s.p == len(s.buf) || s.buf[s.p] == ' ' {
			v, _ := strconv.ParseInt(string(s.buf[start:s.p]), 10, 0)
			result = append(result, int(v))
			start = s.p + 1
		}
	}

	return result
}
func (s *Scanner) NextInt64Array() []int64 {
	s.pre()
	start := s.p
	result := []int64{}
	for ; s.p < len(s.buf) + 1; s.p++ {
		if s.p == len(s.buf) || s.buf[s.p] == ' ' {
			v, _ := strconv.ParseInt(string(s.buf[start:s.p]), 10, 64)
			result = append(result, v)
			start = s.p + 1
		}
	}
	return result
}

func (s *Scanner) NextMap() map[int]bool {
	s.pre()
	start := s.p
	mp := map[int]bool{}
	for ; s.p < len(s.buf); s.p++ {
		if s.buf[s.p] == ' ' {
			v, _ := strconv.Atoi(string(s.buf[start:s.p]))
			mp[v] = true
			start = s.p + 1
		}
	}
	v, _ := strconv.Atoi(string(s.buf[start:s.p]))
	mp[v] = true

	return mp
}

func (s *Scanner) pre() {
	if s.p >= len(s.buf) {
		s.readLine()
		s.p = 0
	}
}
func (s *Scanner) readLine() {
	s.buf = make([]byte, 0)
	for {
		l, p, e := s.r.ReadLine()
		if e != nil {
			panic(e)
		}
		s.buf = append(s.buf, l...)
		if !p {
			break
		}
	}
}