[55, 9, 27, 28]
2
[54, 12, 74, 68]
2
[57, 44, 66, 21]
2
[21, 78, 27, 56]
2
[66, 59, 80, 58]
2
[59, 71, 26, 58]
2
[72, 80, 12, 9]
2
[16, 14, 69, 6]
2
[28, 4, 49, 43]
-1
[77, 74, 66, 4]
2
[44, 35, 79, 40]
2
[15, 9, 78, 12]
2
[19, 47, 75, 29]
2
[25, 19, 9, 53]
2
[25, 20, 16, 68]
2
[73, 65, 62, 7]
-1
[36, 63, 26, 16]
2
[80, 4, 78, 20]