Make loops out of blue strips of cloth along the edge of the end curtain in one set. Do the same thing with the end curtain in the other set.
Join five of the curtains together. Do the same thing with the other five.
Make 50 loops on the end curtain of the one set. Do the same thing on the end curtain of the other set. Put the loops across from each other.
Then they made 50 loops along the edge of the end curtain in the one set. They did the same thing with the other set.