#include #include #define rep(i,n) for(int i=0;i vi; typedef vector vl; typedef vector> vvi; typedef vector> vvl; typedef long double ld; typedef pair P; template ostream& operator<<(ostream& os, const static_modint& a) {os << a.val(); return os;} template ostream& operator<<(ostream& os, const dynamic_modint& a) {os << a.val(); return os;} template istream& operator>>(istream& is, static_modint& a) {long long x; is >> x; a = x; return is;} template istream& operator>>(istream& is, dynamic_modint& a) {long long x; is >> x; a = x; return is;} template istream& operator>>(istream& is, vector& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;} template ostream& operator<<(ostream& os, const pair& p){os << p.first << ' ' << p.second; return os;} template ostream& operator<<(ostream& os, const vector& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;} template ostream& operator<<(ostream& os, const vector>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;} template ostream& operator<<(ostream& os, const set& se){for(T x : se) os << x << " "; os << "\n"; return os;} template ostream& operator<<(ostream& os, const unordered_set& se){for(T x : se) os << x << " "; os << "\n"; return os;} template ostream& operator<<(ostream& os, const atcoder::segtree& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;} template ostream& operator<<(ostream& os, const atcoder::lazy_segtree& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;} template void chmin(T& a, T b){a = min(a, b);} template void chmax(T& a, T b){a = max(a, b);} using mint = modint998244353; int main(){ int l, k; cin >> l >> k; string s, t; cin >> s >> t; int n = (k + 1) * (k + 1); vector a(26); cin >> a; int tot = 0; rep(i, 26) tot += a[i]; vector> G(n); auto f = [&](int x, int y){ return x * (k + 1) + y; }; for(int x_from = 0; x_from < k + 1; x_from++){ for(int y_from = 0; y_from < k + 1; y_from++){ int from = f(x_from, y_from); rep(i, 26){ int x_to = x_from; int y_to = y_from; if(s[x_from % l] == 'a' + i) x_to++; if(t[y_from % l] == 'a' + i) y_to++; int to = f(x_to, y_to); G[from][to] += mint(a[i]) / tot; } } } vector dp(n); dp[0] = 1; mint ans1 = 0; mint ans2 = 0; rep(_, k){ vector dp_old(n); swap(dp, dp_old); rep(from, n){ if(dp_old[from] == mint(0)) continue; for(auto [to, c] : G[from]) dp[to] += dp_old[from] * c; } rep(to, n){ int x_to = to / (k + 1); int y_to = to % (k + 1); if(x_to == y_to + l){ ans1 += dp[to]; dp[to] = 0; } if(x_to + l == y_to){ ans2 += dp[to]; dp[to] = 0; } } } cout << ans1 << ' ' << ans2 << "\n"; return 0; }