Given three integers. Determine how many of them are equal to each other. The program must print one of the numbers: 3 (if all are the same), 2 (if two of them are equal to each other and the third one is different) or 0 (if all numbers are different).

**Example input 1 **

10

5

10

**Example output 1**

2

**Example input 2**

5

5

5

**Example output 2**

3