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USE 1 (1 square)
Input:                   Output: 
00000000000000000000     0000000000
00000000000000000000     0000011110
00000000001111111100     0000011110
00000000001111111100     0000011110
00000000001111111100     0000011110
00000000001111111100     0000000000
00000000001111111100     0000000000
00000000001111111100     0000000000
00000000001111111100     0000000000
00000000001111111100     0000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000


USE 2 (1 square)
Input:                   Output: 
00000000000000000000     0000000000
00000000000000000000     0000000000
00000000000000000000     0000000000
00000000000000000000     0000110000
00000000000000000000     0000110000
00000000000000000000     0000000000
00000000111100000000     0000000000
00000000111100000000     0000000000
00000000111100000000     0000000000
00000000111100000000     0000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000


USE 3 (2 squares)
Input:                   Output: 
00000000000000000000     0000000000
00000000000000000000     0000000000
00000000000000000000     0001100000
00000000000000000000     0001100000
00000011110000000000     0000000000
00000011110000000000     0000000000
00000011110000000000     0000011100
00000011110000000000     0000011100
00000000000000000000     0000000000
00000000000000000000     0000000000
00000000000000000000
00000000000000000000
00000000001111110000
00000000001111110000
00000000001111110000
00000000001111110000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000


USE 4 (3 squares w/ 2 adjacent)
Input:                   Output: 
00000000000000000000     0000000000
00000000000000000000     0000000010
00000000000000001100     0000000000
00000000000000001100     0011111000
00000000000000000000     0011111000
00000000000000000000     0011111000
00001111111111000000     0011111000
00001111111111000000     0011111000
00001111111111000000     0111111110
00001111111111000000     0000000000
00001111111111000000
00001111111111000000
00001111111111000000
00001111111111000000
00001111111111000000
00001111111111000000
00111111111111111100
00111111111111111100
00000000000000000000
00000000000000000000


USE 5 (2 squares nested in 1 square)
Input:                   Output: 
00000000000000000000     0000000000
00000000000000000000     0111111110
00111111111111111100     0100111110
00111111111111111100     0100111110
00110000111111111100     0111111110
00110000111111111100     0111111110
00110000111111111100     0110000010
00110000111111111100     0110000010
00111111111111111100     0111111110
00111111111111111100     0000000000
00111111111111111100
00111111111111111100
00111100000000001100
00111100000000001100
00111100000000001100
00111100000000001100
00111111111111111100
00111111111111111100
00000000000000000000
00000000000000000000