{ NOTE: it is recommended to use this even if you don't understand the following code. }

{ constraints }
const
    MAXN = 500;

{ input data }
var
    N, i, j  : longint;
    D     : array[0..MAXN-1] of longint;
    C     : array[0..MAXN-1] of array[0..MAXN-1] of longint;

begin
{
    uncomment the following lines if you want to read/write from files
    assign(input,  'input.txt');  reset(input);
    assign(output, 'output.txt'); rewrite(output);
}

    readln(N);
    for i:=0 to N-1 do
        read(D[i]);
    readln();

    for i:=0 to N-1 do
    begin
        for j:=0 to N-1 do
            read(C[i][j]);
        readln();
    end;

    { insert your code here }

    writeln(42); { print result }
end.