Make Some Noise!

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Points: 100
Time limit: 1.0s
Memory limit: 256M

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Problem type

Input

The input is a string s containing only lowercase English letters.

Output

Output a non-negative integer representing the answer.

Constraints

1 \le \left|s\right| \le 100

Example 1

Input
lms
0

Example 2

Input
child
1

Example 3

Input
contest
2

Example 4

Input
talent
2

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