C=-20
print '------------------'
print '   C      F'
while C <= 40:
	F = (9.0/5)*C + 32
	print '%5d  %5.1f'%(C,F)
	C += 5
print '------------------'

# x=1.2
# s=x
# k=1
# N=25
# sign=1.0
# import math
# while k <= N:
# 	sign=-sign
# 	k += 2
# 	s += sign* x**k /math.factorial(k)

# print 'sin(%g) = %g' %(x,s) 
