# row=5
# i=0
# while i<=row-1:
#     j=0
#     while j<i:
#         print("",end=" ")
#         j+=1
#     k=i
#     while k<=row-1:
#         print("*",end=" ")
#         k+=1
#     print()
#     i+=1
# i=row-1
# while i>=0:
#     j=0
#     while j<i:
#         print("",end=" ")
#         j+=1
#     k=i
#     while k<=row-1:
#         print("*",end=" ")
#         k+=1
#     print("")
#     i-=1


