let dist[1][1] := 5; let dist[1][2] := 10; let dist[1][3] := 15; let dist[1][4] := 2; let dist[1][5] := 6; let dist[2][1] := 12; let dist[2][2] := 2; let dist[2][3] := 17; let dist[2][4] := 5; let dist[2][5] := 3; let dist[3][1] := 9; let dist[3][2] := 5; let dist[3][3] := 13; let dist[3][4] := 16; let dist[3][5] := 7; let dist[4][1] := 7; let dist[4][2] := 18; let dist[4][3] := 19; let dist[4][4] := 1; let dist[4][5] := 5; let dist[5][1] := 17; let dist[5][2] := 7; let dist[5][3] := 15; let dist[5][4] := 15; let dist[5][5] := 6;