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Problems > Last Digit of Fibonacci

Last Digit of Fibonacci

Difficulty: 1400 2000 ms 128 MB

math

Print the last decimal digit of F(N).

Input: one integer N.

Output: F(N) mod 10.

Constraints:

  • 0 ≤ N ≤ 1018

Sample Tests

Input 1
7
Output 1
3
Input 2
0
Output 2
0

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