#
#  Loop to evaluate the triangular numbers.
#
print ( '' )
print ( '  Evaluate triangular numbers for 0 <= n < 11.')
print ( '' )
for n in range ( 0, 11 ):
  print ( '  t(', n, ') = ', n * ( n + 1 ) / 2 )
print ( '' )
print ( '  Repeat calculation, using // for integer division.')
print ( '' )
for n in range ( 0, 11 ):
  print ( '  t(', n, ') = ', n * ( n + 1 ) // 2 )