#title: Single Jersey Tube (plain python)

#Write header:
print(';!knitout-2')
print(';;Machine: Kniterate')
print(';;Carriers: 1 2 3 4 5 6')

#Parameters:
min = 1 #needle number of left edge
max = 20 #needle number of right edge
rows = 20 #number of rows to knit
carrier = "3" #carrier name

# ---- set up initial loops and yarn carrier ----
#Bring in carrier:
print(f"in {carrier}")

#On Kniterate machines, carriers start on the left,
#so will start tucking onto needles left-to-right:
for n in range(min, max+1, 1):
	#tuck alternating needles starting at the left edge:
	if (n-min) % 2 == 0:
		print(f"tuck + b{n} {carrier}")

#...continue clockwise around the tube to the front bed:
for n in range(max, min-1, -1):
	#note that adding 1+max-min preserves the alternating-needles pattern:
	if (1+max-min + max-n) % 2 == 0:
		print(f"tuck - f{n} {carrier}")

#...continue clockwise around the tube to the back bed and fill in needles missed the first time:
for n in range(min, max+1, 1):
	#tuck alternating needles starting at the left edge:
	if (n-min) % 2 != 0:
		print(f"tuck + b{n} {carrier}")

#...finally, fill in the rest of the front bed:
for n in range(max, min-1, -1):
	#note that adding 1+max-min preserves the alternating-needles pattern:
	if (1+max-min + max-n) % 2 != 0:
		print(f"tuck - f{n} {carrier}")

#now knit one and a half rows of plain knitting to let the cast-on stitches relax (and because having the carrier on the right will be convenient for example code):
for n in range(min, max+1, 1):
	print(f"knit + b{n} {carrier}")
for n in range(max, min-1, -1):
	print(f"knit - f{n} {carrier}")
for n in range(min, max+1, 1):
	print(f"knit + b{n} {carrier}")

# ---- single jersey tube ----
#Create a single-jersey (all knits) tube:
for r in range(0, rows+1, 1):
	#knit front of tube going left:
	for n in range(max, min-1, -1):
		print(f"knit - f{n} {carrier}")
	#knit back of tube going right:
	for n in range(min, max+1, 1):
		print(f"knit + b{n} {carrier}")

# ---- take carrier out and drop remaining loops ----
#Send carrier back to its parking location:
print(f"out {carrier}")

#drop loops:
for n in range(min, max+1, 1):
	print(f"drop f{n}")
for n in range(min, max+1, 1):
	print(f"drop b{n}")