20
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011111100100001100001
010110111111110010010
010011100010011101000
110101101111110110000
000010110011111110000
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101011000111110111010
111111011110100110110
100111010000111100011
010111001001010101101
101010000110110111100
111010001011110111100
110010010011111110111
010111100000100111110
110110010011010010011
000110000100110011100
101101000100111101010
101011001011110101000
000110011111011011111
101001000100111101110
