rowSize= int(input("Enter the number of rows:\n"))
if rowSize%2==0:
    halfDiamond = int(rowSide/2)
else:
    halfDiamond = int(rowSize/2)+1
space = halfDiamond-1
for i in range(1,halfDiamond+1):
    for j in range(1,space+1):
        print(end=" ")
    space = space - 1 
    num=1
    for j in range (2*i-1):
        print(end=str(num))
        num = num + 1
    print()
space = 1
for i in range(1,halfDiamond):
   for j in range (1,space+1):
        print(end=" ")
   space= space+1
   num = 1
   for j in range(1,2*(halfDiamond-i)):
        print(end=str(num))
        num = num+1
   print()