import std.stdio, std.conv, std.functional, std.string; import std.algorithm, std.array, std.container, std.range, std.typecons; import std.bigint, std.numeric, std.math, std.random; import core.bitop; string FMT_F = "%.10f"; static File _f; void file_io(string fn) { _f = File(fn, "r"); } static string[] s_rd; T _RD(T = long)() { while(!s_rd.length) s_rd = readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; } T _RD(T = long)(File f) { while(!s_rd.length) s_rd = f.readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; } T[] _RDA(T = long)(T fix = 0) { auto r = readln.chomp.split.to!(T[]); r[] += fix; return r; } T[] _RDA(T = long)(File f, T fix = 0) { auto r = f.readln.chomp.split.to!(T[]); r[] += fix; return r; } T RD(T = long)() { if (_f.isOpen) return _RD!T(_f); else return _RD!T; } T[] RDA(T = long)(T fix = 0) { if (_f.isOpen) return _RDA!T(_f, fix); else return _RDA!T(fix); } size_t[] MAKE_IDX(alias less = "a < b", Range)(Range range) { auto idx = new size_t[](range.length); makeIndex!(less)(range, idx); return idx;} size_t MIN_POS(alias less = "a < b", Range)(Range range) { auto r = minPos!(less)(range); return range.length - r.length; } void chmin(T)(ref T x, T y) { x = min(x, y); } void chmax(T)(ref T x, T y) { x = max(x, y); } bool inside(T)(T x, T b, T e) { return x >= b && x < e; } long lcm(long x, long y) { return x * (y / gcd(x, y)); } long mod = 10^^9 + 7; //long mod = 998244353; //long mod = 1_000_003; void moda(ref long x, long y) { x = (x + y) % mod; } void mods(ref long x, long y) { x = ((x + mod) - (y % mod)) % mod; } void modm(ref long x, long y) { x = (x * y) % mod; } void main() { auto N = RD; auto X = new long[][](N); foreach (i; 0..N) X[i] = RDA; auto A = RDA; long ans = long.max; foreach (i; 0..2^^N) { long cost; auto cnt = new long[](N); foreach (y; 0..N) { foreach (x; 0..N) { if (X[y][x] == 1) { ++cnt[y]; } } } void f(long jj) { foreach (ii; 0..N) { if (X[ii][jj] == 1 && cnt[ii] != 0) { --cnt[ii]; if (cnt[ii] == 0) { f(ii); } } } } foreach (j; 0..N) { if (cnt[j] == 0) f(j); } foreach (j; 0..N) { auto bit = 1L << j; if (i & bit) { cost += A[j]; cnt[j] = 0; f(j); } } bool ok = true; (){ foreach (y; 0..N) { foreach (x; 0..N) { if (X[y][x] == 1 && cnt[x] != 0) { ok = false; return; } } }}(); if (ok) ans.chmin(cost); } writeln(ans); stdout.flush; debug readln; }