// No.400 鏡
package main

import (
	"fmt"
)

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

	var ans string
	for _, r := range s {
		if string(r) == "<" {
			ans = ">" + ans
		} else { // if string(r) == ">" {
			ans = "<" + ans
		}
	}
	fmt.Println(ans)
}