print('------------------') # table heading
F = 0
dF = 10                     # increment of C in loop
while F <= 100:             # loop heading with condition
    C = (F-32) * 5/9
    print(f"{F:3d} {C:2.2f}")             # 2nd statement inside loop
    F = F + dF             # last statement inside loop
print('------------------') # end of table line

"""
Terminal> python f2c_table_while.py 
------------------
  0 -17.78
 10 -12.22
 20 -6.67
 30 -1.11
 40 4.44
 50 10.00
 60 15.56
 70 21.11
 80 26.67
 90 32.22
100 37.78
------------------

"""