
const fs = require('fs');
let input = fs.readFileSync("/dev/stdin").toString().trim();
input = input.split('\n')
const N=+input[0]
const dp = [];
dp[0] = 1;
dp[1] = 3;
dp[2] = 7;
dp[3] = 17;
for (let i = 4; i <= N; i++) {
dp[i] = (dp[i - 1] * 2 + dp[i - 2]) % 9901;
}
console.log(dp[N] % 9901);
https://parkparkpark.tistory.com/135