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PP1 Week 2 Conditionals Part 2

Conditional statement - 4

Time limit 1 second
Memory limit 128 MiB

Find the value of y according to condition:

Input data

One integer x (-1000 ≤ x ≤ 1000).

Output data

Print the value of y according to the conditional statement above.

Examples

Input example #1 
3
Output example #1 
51
Input example #2 
-2
Output example #2 
6