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


# get n
reply = input( 'Enter number of columns: ' )
n = int( reply )

# performed repeated printing of a number series
#    print a line of the form row: 0 1 2 ... n-1
# ------- RANGE -----------
# range( 0,n ) # range(0,n) goes from 0 to n-1
# range(i,j) goes from i to j - 1
    # ex. range(1,5) has values 1 2 3 4

print( 'row:', end=' ' )
#    to do so need to first print the row: part
#    then on same line print out the values 0 1 2 ... n-1 one after the other

# Recall print() prints on new lines by default
# To get multiple things printed on the same line, we use end=

for c in range( 0 , n ): # c will be each value one by one 0 1 2 3 4 ... n - 1
    print( c , end=' ' ) # Now each column value c (the numbers from 0 to n) will be printed one after
    # the other on the same line separated by spaces

# You can only use end=... in a print statement
# Instead of printing on new lines (print default behavior),
# we want to print on the same line with the end= separator
# separating the printed output on the same line