Problem Statement

You are given a string S consisting of lowercase and uppercase English letters. The length of S is odd.
If the number of uppercase letters in S is greater than the number of lowercase letters, convert all lowercase letters in S to uppercase.
Otherwise, convert all uppercase letters in S to lowercase.

Input

The input is given from Standard Input in the following format:
S

Output

Print the string S after converting the letters according to the problem statement.

Constraints

• S is a string consisting of lowercase and uppercase English letters.
• The length of S is an odd number between 1 and 99, inclusive.

Sample Input 1

AtCoder

Sample Output 1

atcoder

The string AtCoder contains five lowercase letters and two uppercase letters. Thus, convert all uppercase letters in AtCoder to lowercase, which results in atcoder.

Sample Input 2

SunTORY

Sample Output 2

SUNTORY

The string SunTORY contains two lowercase letters and five uppercase letters. Thus, convert all lowercase letters in SunTORY to uppercase, which results in SUNTORY.

Sample Input 3

a

Sample Output 3

a

见题面 Input 部分

见题面 Output 部分