Increment String Suffix

Given a string that may end with a sequence of digits, your task is to increment the numeric suffix by one. If the string does not end with digits, you should append 1 at the end.

If the string ends with a number, the incremented number should retain the same number of digits (i.e., preserve leading zeros). For example:

• foobar23 becomes foobar24
• foo0041 becomes foo0042
• foo becomes foo1
• If the input is an empty string, output 1.

Implement the solution using the standard input and output streams (stdin and stdout).

inputFormat

A single line string S (possibly empty) is provided via standard input.

outputFormat

Print the resulting string after incrementing the numeric suffix by one, or appending '1' if no numeric suffix exists, to standard output.## sample

foobar23

foobar24