goal reached X X X X X X X X X X X X 0 X X X X X X X . 1 . A X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . B X . . . X X X X X X X X X v O ^ X X X X X X X X A . . . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 1 X X X X X X X . . A . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . B X . . . X X X X X X X X X v O ^ X X X X X X X X A . . . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 2 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . B X . . A X X X X X X X X X v O ^ X X X X X X X X A . . . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 3 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X B . . . . X . . A X X X X X X X X X v O ^ X X X X X X X X A . . . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 4 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X B . . . . X . . A X X X X X X X X X v O ^ X X X X X X X X . . . . A X X X X X X X X X X X X X ---- X X X X X X X X X X X X 5 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X B . . . . X A . . X X X X X X X X X v O ^ X X X X X X X X . . . . A X X X X X X X X X X X X X ---- X X X X X X X X X X X X 6 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . B X . . . . X X O . . . @ X ^ @ v X X X . . . . . X A . . X X X X X X X X X v O ^ X X X X X X X X . . . . A X X X X X X X X X X X X X ---- X X X X X X X X X X X X 7 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . B X . . . . X X O . . . @ X ^ @ v X X X . . . . . X . . . X X X X X X X X X v O ^ X X X X X X X X . A . . A X X X X X X X X X X X X X ---- X X X X X X X X X X X X 8 X X X X X X X . . . . X X X X X X X X . . . . X X B . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . . X . . . X X X X X X X X X v O ^ X X X X X X X X . A . . A X X X X X X X X X X X X X ---- X X X X X X X X X X X X 9 X X X X X X X . . . . X X X X X X X X . . . . X X B . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . . X . . . X X X X X X X X X v O ^ X X X X X X X X . A A . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 10 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . . X . . . X X X X X X X X X v B ^ X X X X X X X X . A A . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 12 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . . X . . . X X X X X X X X X B O ^ X X X X X X X X . A A . . X X X X X X X X X X X X X ---- X X X X X X X X X X X X 13 X X X X X X X . . . . X X X X X X X X . . . . X X . . . . . X . . . . X X O . . . @ X ^ @ v X X X . . . . . X . . . X X X X X X X X X B O ^ X X X X X X X X A . A . . X X X X X X X X X X X X X