Subsequence Checker

Given two strings, main_str and sub_str, determine whether sub_str is a subsequence of main_str. A subsequence is a sequence that can be derived from another string by deleting some or no characters without changing the order of the remaining characters. For example, "ace" is a subsequence of "abcdef", but "aec" is not.

An empty sub_str is always considered a subsequence. Print True if sub_str is a subsequence of main_str; otherwise, print False.

inputFormat

The input consists of two lines:

• The first line contains the string main_str.
• The second line contains the string sub_str.

outputFormat

Output a single line: True if sub_str is a subsequence of main_str, and False otherwise.

abcdef
ace

True