class Solution {
private static final int MOD = 1234567;
public int solution(int n) {
int[] dp = new int[100001];
dp[0] = 0;
dp[1] = 1;
for(int i=2 ; i<=n ; i++){
dp[i] = (dp[i-1] + dp[i-2])%MOD;
}
return dp[n];
}
}