Validate a password (at least one uppercase, lowercase, digit, special char).

Difficulty: Medium

Phase: 6 · Mixed Logical Challenges

XP Reward: 20 XP

Topics: Mixed Logical Challenges, Medium

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Given N words on line 2, count how many distinct anagram groups exist. Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: 6 eat tea tan ate nat bat

Output: 3

Explanation: Sample execution for input 6 eat tea tan ate nat bat