# Python 3 program
# to print Alphabet Pattern-12
# as shown below
'''
A
ABA
ABCBA
ABCDCBA
ABCDEDCBA
'''
# Ascii code of A=65,E=69,F=70
# Print certain number of spaces before alphabets
rows=5
ch = 'A'
# outer loop for ith rows
for i in range (1,rows+1):
for space in range(rows-i):
print(' ',end='')
# this loop will print
# A
# AB
# ABC
# ABCD
# ABCDE
for j in range(1, i+1):
print(ch,end="")
ch=ord(ch)+1
ch = chr(ch)
ch=ord(ch)-1
ch = chr(ch)
# this loop will print remaining pattern
# after center line
#
# A
# BA
# CBA
# DCBA
for k in range(1, i):
ch=ord(ch)-1
ch = chr(ch)
print(ch,end="")
print()
ch='A'