#!/usr/bin/env python
#coding:UTF-8

#入力値の受け取り
S = raw_input()

#文字数計算
SL = len(S)

S2 = ""

#反転処理
for i in range(SL-1,-1,-1):
     if S[i] == "<":
          S2 += ">"
     else:
          S2 += "<"
print S2