Number triangle

 # Number Triangles

"""

"""

# Read Number of lines 

N = int(input("Enter number of Lines : "))

print("Number Triangle : ")

for n in range(1,N+1,1):

print("    "*(N-n),end="")

for k in range(1,n+1,1):

print(str(k).center(4), end="")

for k in range(n-1,0,-1):

print(str(k).center(4), end="")

print()