Comma Integer Count

A string $S$ made only of digits and commas is given. Count the integers in $S$.

An integer is a run of one or more consecutive digits in $S$. A place between two commas that holds no digit is not counted. For the string 1,,23 the integers are 1 and 23, so the answer is 2. For the string ,,, the answer is 0.

The first line contains the string $S$. It is made only of digits and commas, and its length is at least 1 and at most 100.

Print the number of integers in $S$ on one line.