MOD = 998244353 def main(): import sys input = sys.stdin.read data = input().split() idx = 0 N = int(data[idx]) idx += 1 M = int(data[idx]) idx += 1 K = int(data[idx]) idx += 1 A = list(map(int, data[idx:idx+N])) idx += N A = [a % K for a in A] for k in range(N - M + 1): window = A[k:k+M] dp = [0] * K for a in window: new_dp = dp.copy() for r in range(K): new_r = (r + a) % K new_dp[new_r] = (new_dp[new_r] + dp[r]) % MOD new_dp[a] = (new_dp[a] + 1) % MOD dp = new_dp print(dp[0] % MOD) if __name__ == '__main__': main()