[(5, 10), (5, 30), (15, 30), (15, 10), (5, 10)] (5, 11) (5, 12) (5, 13) (5, 14) (5, 15) (5, 16) (5, 17) (5, 18) (5, 19) (5, 20) (5, 21) (5, 22) (5, 23) (5, 24) (5, 25) (5, 26) (5, 27) (5, 28) (5, 29) (5, 30) (6, 30) (7, 30) (8, 30) (9, 30) (10, 30) (11, 30) (12, 30) (13, 30) (14, 30) (15, 30) (15, 29) (15, 28) (15, 27) (15, 26) (15, 25) (15, 24) (15, 23) (15, 22) (15, 21) (15, 20) (15, 19) (15, 18) (15, 17) (15, 16) (15, 15) (15, 14) (15, 13) (15, 12) (15, 11) (15, 10) (14, 10) (13, 10) (12, 10) (11, 10) (10, 10) (9, 10) (8, 10) (7, 10) (6, 10) (5, 10) [(5, 11), (5, 12), (5, 13), (5, 14), (5, 15), (5, 16), (5, 17), (5, 18), (5, 19), (5, 20), (5, 21), (5, 22), (5, 23), (5, 24), (5, 25), (5, 26), (5, 27), (5, 28), (5, 29), (5, 30), (15, 29), (15, 28), (15, 27), (15, 26), (15, 25), (15, 24), (15, 23), (15, 22), (15, 21), (15, 20), (15, 19), (15, 18), (15, 17), (15, 16), (15, 15), (15, 14), (15, 13), (15, 12), (15, 11), (15, 10)] [(6, 30), (7, 30), (8, 30), (9, 30), (10, 30), (11, 30), (12, 30), (13, 30), (14, 30), (15, 30), (14, 10), (13, 10), (12, 10), (11, 10), (10, 10), (9, 10), (8, 10), (7, 10), (6, 10), (5, 10)] ........................................ ........................................ ........................................ ........................................ .........*===================*.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........|...................|.......... .........*===================*.......... ........................................ ........................................ ........................................ ........................................ ........................................