''' Purpose: stepping stone to nested looping
'''

# get i
reply = input( 'Enter number: ' )
i = int( reply )

# performed the repeated printing of a number series
print( i, ':', end=' ')
for lv in range( 0, i + 1 ) : # 0 to i
    # print a line of the form i: 0 1 2 ... i (range(0, i+1))
    print( lv, end=' ' ) # How can I change this???
# Remember this prints out 1 2 3 4

    # to do so need to first print the row i: part
    # then on same line print out the values 0 1 2 ... i one after the other
# for duck in range(0, 100000):
#     print( 'duck' )