The first row of the right first needle is opposite to the first row of the left first needle and the second row of the second needle.

The second stitch in the second row on the right is the second stitch in the second row on the left and the third stitch in the third row.

The third stitch in the third row on the right, the third stitch in the third row on the left and the fourth stitch in the fifth row.

The five lines of the fourth needle on the right are the five lines of the fourth needle on the left and the seventh line of the fifth needle.

The seventh row of the fifth needle on the right is more important than the seventh row of the fifth needle and the ninth row of the sixth needle on the left.

And so on, stitch by stitch, starting from the fourth stitch, staggered to the middle of the collar in rows, and then folded the other half triangle of the collar in for hand sewing.