Python Program To Print A-ABC-ABCDE Pattern Up To n Lines

This python program prints or generates A-ABC-ABCDE pattern up to n lines given by user.

In this program %c is used for displaying corresponding ASCII character of a number. For example to display ASCII character corresponding to 65; print("%c" %(65)) which gives A as output.

Python Source Code: A-ABC-ABCDE Pattern

# Pattern A-ABC-ABCDE ...

# Reading number of rows
row = int(input('Enter how many lines? '))

a = 65 # ASCII value for 'A'

# Generating pattern
for i in range(1,row+1):
    
    # for space
    for j in range(1, row+1-i):
        print(' ', end='')
    
    # for pattern
    for j in range(0, 2*i-1):
        print('%c' % (a+j), end='')
    
    # Moving to next line
    print()

Output

Enter how many lines? 7

      A
     ABC
    ABCDE
   ABCDEFG
  ABCDEFGHI
 ABCDEFGHIJK
ABCDEFGHIJKLM