const MOD: usize = 998244353; fn main() { let mut n = String::new(); std::io::stdin().read_line(&mut n).ok(); let n: usize = n.trim().parse().unwrap(); let minlen = n + n - 1; let limit = 425; let mut dp = vec![vec![vec![0usize; limit+1]; limit+1]; n+1]; dp[0][0][0] = 1; for i in 0..n { let addval = if i == 0 { 0 } else { 1 }; for j in 0..=limit { for k in 0..=limit { if dp[i][j][k] == 0 { continue; } if j+1 <= limit && k+1+addval <= limit { dp[i+1][j+1][k+1+addval] += dp[i][j][k]; dp[i+1][j+1][k+1+addval] %= MOD; } if j+10 <= limit && k+1+addval <= limit { dp[i+1][j+10][k+1+addval] += MOD - dp[i][j][k]; dp[i+1][j+10][k+1+addval] %= MOD; } if j+10 <= limit && k+2+addval <= limit { dp[i+1][j+10][k+2+addval] += dp[i][j][k]; dp[i+1][j+10][k+2+addval] %= MOD; } if j+100 <= limit && k+2+addval <= limit { dp[i+1][j+100][k+2+addval] += MOD - dp[i][j][k]; dp[i+1][j+100][k+2+addval] %= MOD; } if j+100 <= limit && k+3+addval <= limit { dp[i+1][j+100][k+3+addval] += dp[i][j][k]; dp[i+1][j+100][k+3+addval] %= MOD; } } } for k in 0..=limit { for j in 0..limit { dp[i+1][j+1][k] += dp[i+1][j][k]; dp[i+1][j+1][k] %= MOD; } } } let mut result = 0usize; for j in minlen..=limit { result += dp[n][j][j]; } println!("{}", result % MOD); }