## https://yukicoder.me/problems/no/1677

import sys

sys.setrecursionlimit(201000)

MOD = 998244353



def calc_mex(x, y):
    for j in range(3):
        if j != x and j != y:
            return j

def main():
    S = input()
    K = int(input())

    def dfs(S, index):
        if index + 4 <= len(S):
            s = S[index:(index + 4)]

            if s == "m?x(":
                new_dp = [0] * 3
                dp1, index = dfs(S, index + 4)
                dp2, index = dfs(S, index + 1)
                for i in range(3):
                    for j in range(3):
                        k = calc_mex(i, j)
                        new_dp[k] += (dp1[i] * dp2[j]) % MOD
                        new_dp[k] %= MOD
                        k = max(i, j)
                        new_dp[k] += (dp1[i] * dp2[j]) % MOD
                        new_dp[k] %= MOD
                return new_dp, index + 1
            elif s == "mex(":
                new_dp = [0] * 3
                dp1, index = dfs(S, index + 4)
                dp2, index = dfs(S, index + 1)
                for i in range(3):
                    for j in range(3):
                        k = calc_mex(i, j)
                        new_dp[k] += (dp1[i] * dp2[j]) % MOD
                        new_dp[k] %= MOD
                return new_dp, index + 1
            elif s == "max(":
                new_dp = [0] * 3
                dp1, index = dfs(S, index + 4)
                dp2, index = dfs(S, index + 1)
                for i in range(3):
                    for j in range(3):
                        k = max(i, j)
                        new_dp[k] += (dp1[i] * dp2[j]) % MOD
                        new_dp[k] %= MOD
                return new_dp, index + 1

        if index < len(S):
            dp = [0] * 3
            s = S[index]
            for x in range(3):
                if s in ("?", str(x)):
                    dp[x] += 1
            return dp, index + 1

        
    dp, _ = dfs(S, 0)
    print(dp[K])
            
        









if __name__ == "__main__":
    main()