....<3.......<3........<3......<3.........<3
....<3......<3..<3..<3...<3....<3.........<3
....<3.......<3....<3....<3....<3.........<3
....<3........<3........<3.....<3.........<3
....<3...........<3...<3.......<3.........<3
....<3..............<3...............<3....