I'm working off of a vintage pattern that provides no pictures, for a crocheted soccer ball. There are 20 hexagon motifs and 12 pentagon motifs. The finished hexagons have 3 sc in each of 6 corners and 4 sc in between each middle stitch (of the 3) for a total of 30 stitches. The finished pentagons have 3 sc in each of 5 corners with 3 sc between each middle stitch for a total of 20 stitches. I'm confused on how to join them and have each stitch used. Any help will be greatly appreciated