Piece 3: CO2
Rows 1 - 11: as piece 1
Row 12: add the three pieces as you have them on the needle
and go on k across (12+16+12 = 40)
Rows 13 - 44: k
Row 45: k18, BO4, k across (two groups: 18 - 18)
Rows 46 - 53: k on each group
Row 54: k18, CO4, k18 (40)
Rows 55 - 59: k
