Problems

Number of sentences

Find the number of sentences in the given fragment of the text.

Input

Unique line contains the text fragment in English, the number of its symbols does not exceed 250. It is guaranteed that the text has no dash, hyphens, digits and numbers.

Output

Print the number of sentences in the text fragment.

Time limit 1 second
Memory limit 128 MiB
Input example #1
Hello world!

Output example #1
1

Input example #3
Hi!!!

Output example #3
1

Source SFE-2010 Variant 12