1 [ [ 1, 2, 3, 4, 5 ], [ 2, 3, 4, 5, 6 ] ] [ 2, 3, 4, 5, 6 ] [ 1, 2, 3, 4, 5 ] | |
1 [ [ 1, 2, 3, 4, 5 ], [ 2, 3, 4, 5, 6 ] ] [ 2, 3, 4, 5, 6 ] [ 2, 3, 4, 5, 6 ] | |
null [ [ 1, 2, 3, 4, 5 ], [ 2, 3, 4, 5, 6 ] ] [ 2, 3, 4, 5, 6 ] [ 1, 2, 3, 4, 5 ] | |
null [ [ 1, 2, 3, 4, 5 ], [ 2, 3, 4, 5, 6 ] ] [ 2, 3, 4, 5, 6 ] [ 2, 3, 4, 5, 6 ] |