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The quiz show

Beginner

Python for kids 路 Lesson 31: Module 2 summary: Decisions

Problem Statement

The quiz show has three questions. The right answers are 7, 8 and 3. Read the player's three answers and print how many points they scored (one for each right answer).

Input Format

Three whole numbers - the answers (0..100), each on its own line.

Output Format

One number - the result.

Examples
Example 1

Input

7
8
3

Output

3
Example 2

Input

7
6
3

Output

2