<filename>pattern/23.py
k=0
c=65
for i in range(5):
    k=c
    for j in range(i):
        print(chr(k),end='')
        k+=1
   
    print()
            

<filename>pattern/23.py
k=0
c=65
for i in range(5):
    k=c
    for j in range(i):
        print(chr(k),end='')
        k+=1
   
    print()
            
