Deniska thinks that he can say how many unique numbers in the sequence that Mishka came up with. Help Denis. Write a program for him that will do all the calculations for him.
(You can write a program in Python in one line. Try it!)
Input
The input is a sequence of numbers.
Imprint
Print on the screen how many distinct numbers occur in the sequence.
Examples
| # |
Input |
Output |
| 1 |
4 5 7 2 3 3 2 |
5 |