Comma Integer Count

Time limit1sMemory limit256 MB

Summary

Count the maximal runs of digits in a comma-separated digit string.

Level: Easy1 of 10
Topics: String
Solved: No attempts yet

Problem

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.

Input

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.

Output

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

Examples3

Example 1
Input
```
10,20,30,50,100
```
Expected output
```
5
```
Example 2
Input
```
1
```
Expected output
```
1
```
Example 3
Input
```
1,2,3
```
Expected output
```
3
```