# Numeric Pattern

#         1
#       2 2 2
#     3 3 3 3 3
#   4 4 4 4 4 4 4
# 5 5 5 5 5 5 5 5 5

user_integer_input = int( input() )

for row in range(1, user_integer_input + 1):

    #Print Spaces
    print( ' ' * ( 2 * (user_integer_input - row) ), end='' )
    #Number
    if(row == 1):
        print( row, end='' )
    else:
        #Before part
        print( ( str(row) + ' ' ) * (row - 1), end='' )
        print( row, end='')
        #After part
        print( ( ' ' + str(row) ) * (row - 1), end='' )

    if not( row == user_integer_input ):
        print( '' ) #NEW LINE