Huge Fn mod m - IGGI

http://appinventor.mit.edu/explore/master-trainers.html#nguyen

This app is created using MIT App Inventor to demonstrate its ability in CS courses, especially Algorithms.

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Problem Introduction: The Fibonacci numbers are defined as follows: F0 = 0, F1 = 1, and Fi = Fi−1 + Fi−2 for i ≥ 2.

Task: Given two integers n and m, output Fn mod m (that is, the remainder of Fn when divided by m).
Input Format: The input consists of two integers n and m given on the same line (separated by a space).
Constraints: 1 ≤ n ≤ 1018, 2 ≤ m ≤ 105
Output Format: Output Fn mod m.

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