#include <bits/stdc++.h>   using namespace std;   template <typename T>   inline T read1() {     T t = 0;     char k = getchar();     bool flag = 0;     while ( 0  > k || k >  9 ) {       if (k ==  - ) flag = 1;       k = getchar();     }     while ( 0  <= k && k <=  9 )       t = (t << 3) + (t << 1) + (k ^ 48), k = getchar();     return flag ? -t : t;   }   int s, x[5], dp[2][16][16][16];   char str[5][1005];   int main() {     s = read1<long long>();     for (int i = 1; i < 5; ++i) x[i] = read1<long long>();     for (int i = 1; i <= 4; ++i) scanf( %s , str[i] + 1);     memset(dp[0], 0x7f, sizeof(dp[0]));     dp[0][15][15][15] = 0;     for (int i = 1; i <= s; ++i) {       memset(dp[i & 1], 0x7f, sizeof(dp[i & 1]));       int t = 0;       for (int j = 1; j < 5; ++j) t = t << 1 | (str[j][i] ==  . );       for (int j = 0; j < 16; ++j)         for (int k = 0; k < 16; ++k)           for (int l = 0; l < 16; ++l)             dp[i & 1][15][15][15] =                 min(dp[i & 1][15][15][15], dp[~i & 1][j][k][l] + x[4]);       for (int k = 0; k < 16; ++k)         for (int l = 0; l < 16; ++l)           dp[i & 1][k][l][t] = min(dp[i & 1][k][l][t], dp[~i & 1][15][k][l]);       for (int j = 0; j < 16; ++j)         for (int k = 0; k < 16; ++k)           for (int r = 0; r < 16; ++r)             for (int l = 1; l < 4; ++l)               for (int w = 0; w < 5 - l; ++w) {                 int op[3] = {j, k, r};                 for (int f = 2; f > 2 - l; --f) op[f] |= (1 << l) - 1 << w;                 dp[i & 1][op[0]][op[1]][op[2]] = min(                     dp[i & 1][op[0]][op[1]][op[2]], dp[i & 1][j][k][r] + x[l]);               }     }     cout << dp[s & 1][15][15][15];     return 0;   }   