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.
import java.util.*;
import java.io.*;

public class C
{

    Reader in;
    PrintWriter out;
    int i = 0, j = 0;
    void solve()
    {
        
        //START//
        char[] s = in.next().toCharArray();
        boolean started = false;
        for (i = 0; i < s.length; i++)
        {
            if (s[i] == 'a')
            {
                if (started)
                    break;
            }
            else
            {
                started = true;
                s[i]--;
            }
        }
        if (!started)
        {
            s[s.length - 1] = 'z';
        }
        out.println(new String(s));
        







        //END
        
    }
    void runIO()
    {
        in = new Reader();
        out = new PrintWriter(System.out, false);
        solve();
        out.close();
    }

    public static void main(String[] args)
    {
        new C().runIO();
    }


    // input/output
    static class Reader
    {
        final private int BUFFER_SIZE = 1 << 16;
        private DataInputStream din;
        private byte[] buffer;
        private int bufferPointer, bytesRead;

        public Reader()
        {
            din = new DataInputStream(System.in);
            
            buffer = new byte[BUFFER_SIZE];
            bufferPointer = bytesRead = 0;
        }

        

        public final String next()
        {
            int c = read();
            while (isSpaceChar(c))
            {
                c = read();
            }
            StringBuilder res = new StringBuilder();
            do
            {
                res.append((char) c);
                c = read();
            } while (!isSpaceChar(c));
            return res.toString();
        }

        private boolean isSpaceChar(int c)
        {
            return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
        }

        public int nextInt()
        {
            int ret = 0;
            byte c = read();
            while (c <= ' ')
                c = read();
            boolean neg = (c == '-');
            if (neg)
                c = read();
            do
            {
                ret = ret * 10 + c - '0';
            } while ((c = read()) >= '0' && c <= '9');
            if (neg)
                return -ret;
            return ret;
        }

        public long nextLong()
        {
            long ret = 0;
            byte c = read();
            while (c <= ' ')
                c = read();
            boolean neg = (c == '-');
            if (neg)
                c = read();
            do
            {
                ret = ret * 10 + c - '0';
            } while ((c = read()) >= '0' && c <= '9');
            if (neg)
                return -ret;
            return ret;
        }

        public double nextDouble()
        {
            double ret = 0, div = 1;
            byte c = read();
            while (c <= ' ')
                c = read();
            boolean neg = (c == '-');
            if (neg)
                c = read();
            do
            {
                ret = ret * 10 + c - '0';
            } while ((c = read()) >= '0' && c <= '9');
            if (c == '.')
                while ((c = read()) >= '0' && c <= '9')
                    ret += (c - '0') / (div *= 10);
            if (neg)
                return -ret;
            return ret;
        }

        public int[] readIntArray(int size)
        {
            int[] arr = new int[size];
            for (int i = 0; i < size; i++)
                arr[i] = nextInt();
            return arr;
        }

        public long[] readLongArray(int size)
        {
            long[] arr = new long[size];
            for (int i = 0; i < size; i++)
                arr[i] = nextInt();
            return arr;
        }

        private void fillBuffer()
        {
            try
            {
                bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
            }
            catch (IOException e)
            {

            }
            
            if (bytesRead == -1)
                buffer[0] = -1;
        }

        private byte read()
        {
            if (bufferPointer == bytesRead)
                fillBuffer();
            return buffer[bufferPointer++];
        }
    }
}
