Строка 150: `[ 1, 'b', 'c'], 0, 'x' => [ 'x', 1, 'b', 'c' ]` ->`[ 1, 'b', 'c'], 'x', 0 => [ 'x', 1, 'b', 'c' ]` Строка 164: `[ 1, 3, 4, 5 ], 2 => [ 1, 2 ]` -> `[ 1, 3, 4, 5 ], 2 => [ 1, 3 ]`