Rounding
Description
Vasya has a non-negative integer n. He wants to round it to nearest integer, which ends up with 0. If n already ends up with 0, Vasya considers it already rounded.
For example, if n = 4722 answer is 4720. If n = 5 Vasya can round it to 0 or to 10. Both ways are correct.
For given n find out to which integer will Vasya round it.
The first line contains single integer n (0 ≤ n ≤ 109) — number that Vasya has.
Print result of rounding n. Pay attention that in some cases answer isn't unique. In that case print any correct answer.
Input
The first line contains single integer n (0 ≤ n ≤ 109) — number that Vasya has.
Output
Print result of rounding n. Pay attention that in some cases answer isn't unique. In that case print any correct answer.
Samples
5
0
113
110
1000000000
1000000000
5432359
5432360
Note
In the first example n = 5. Nearest integers, that ends up with zero are 0 and 10. Any of these answers is correct, so you can print 0 or 10.