You are given a non-empty string s consisting of lowercase English letters. You have to pick exactly one non-empty substring of s and shift all its letters 'z' <image> 'y' <image> 'x' <image> 'b' <image> 'a' <image> 'z'. In other words, each character is replaced with the previous character of English alphabet and 'a' is replaced with 'z'.

What is the lexicographically minimum string that can be obtained from s by performing this shift exactly once?

Input

The only line of the input contains the string s (1 ≤ |s| ≤ 100 000) consisting of lowercase English letters.

Output

Print the lexicographically minimum string that can be obtained from s by shifting letters of exactly one non-empty substring.

Examples

Input

codeforces


Output

bncdenqbdr


Input

abacaba


Output

aaacaba

Note

String s is lexicographically smaller than some other string t of the same length if there exists some 1 ≤ i ≤ |s|, such that s1 = t1, s2 = t2, ..., si - 1 = ti - 1, and si < ti.
s = list(input())
dic = {}
for i in range(1, 26):
    dic[chr(i + ord('a'))] = chr(i - 1 + ord('a'))
dic['a'] = 'z'
n = len(s)
for i in range(n):
    if s[i] != 'a':
        j = i
        while j < n and s[j] != 'a':
            s[j] = dic[s[j]]
            j += 1
        break
else:
    s[-1] = dic[s[-1]]

print(''.join(s))

