package main

import (
	"fmt"
)

func main() {
	var N string
	fmt.Scan(&N)

	hh := make([]int, 8)

	d := 0
	i3 := 0
	for i := len(N) - 1; i >= 0; i-- {
		d += (10 + int(N[i]-'A')) << (4 * i3)

		i3++
		if i3 >= 3 {
			i3 = 0
			for j := 0; j < 4; j++ {
				hh[d%8]++
				d /= 8
			}
		}
	}
	for d > 0 {
		hh[d%8]++
		d /= 8
	}

	maxh := 0
	for o := 0; o < 8; o++ {
		if hh[o] > maxh {
			maxh = hh[o]
		}
	}

	blank := ""
	for o := 0; o < 8; o++ {
		if hh[o] == maxh {
			fmt.Print(blank, o)
			blank = " "
		}
	}
	fmt.Println()
}