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Problems

Count digits

Count digits

Time limit 1 second
Memory limit 128 MiB

Text is given. How many digits it contains?

Input data

Text is given in multiple lines. It can contain any symbol.

Output data

Print the number of symbols that are digits in the text.

Examples

Input example #1
    "q.3 r@1e
-+r4 5="
6QW3s.    ~2%
Output example #1
7
Author Michael Medvediev