#include #include using namespace std; using namespace atcoder; //using mint = modint1000000007; //const int mod = 1000000007; using mint = modint998244353; const int mod = 998244353; //const int INF = 1e9; //const long long LINF = 1e18; #define rep(i, n) for (int i = 0; i < (n); ++i) #define rep2(i,l,r)for(int i=(l);i<(r);++i) #define rrep(i, n) for (int i = (n) - 1; i >= 0; --i) #define rrep2(i,l,r)for(int i=(r) - 1;i>=(l);--i) #define all(x) (x).begin(),(x).end() #define allR(x) (x).rbegin(),(x).rend() #define P pair template inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; } template inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; } bool chk[501][101][50][50]; pair dp[501][101][50][50]; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int l, k; cin >> l >> k; string s0, s1; cin >> s0 >> s1; vectorp(26); { vectora(26); mint sum = 0; rep(i, 26)cin >> a[i], sum += a[i]; rep(i, 26)p[i] = a[i] / sum; } auto dfs = [&](auto &&self, int t, int d, int p0, int p1)->pair { if (chk[t][d][p0][p1]) { return dp[t][d][p0][p1]; } if (l * 2 == d) { return { 1,0 }; } if (0 == d) { return { 0,1 }; } if (t == k) { return { 0,0 }; } mint v0 = 0, v1 = 0; rep(i, 26) { int nt = t + 1; int nd = d; int np0 = p0, np1 = p1; if (i == ((s0[p0%l]) - 'a')) { nd++; np0++; } if (i == ((s1[p1%l]) - 'a')) { nd--; np1++; } np0 %= l; np1 %= l; auto get = self(self, nt, nd, np0, np1); v0 += get.first * p[i]; v1 += get.second * p[i]; } chk[t][d][p0][p1] = true; dp[t][d][p0][p1] = { v0,v1 }; return dp[t][d][p0][p1]; }; auto ans = dfs(dfs, 0, l, 0, 0); cout << ans.first.val() << " " << ans.second.val() << endl; return 0; }