#!/usr/bin/python
# -*- coding: UTF-8 -*-

"""
题目:打印出杨辉三角形(要求打印出10行如下图)。 
"""

if __name__ == '__main__':
	a = []
	for i in range(10):
		a.append([])
		for j in range(10):
			a[i].append(0)
	for i in range(10):
		a[i][0] = 1
		a[i][i] = 1
	for i in range(2,10):
		for j in range(1,i):
			a[i][j] = a[i-1][j-1] + a[i-1][j]
	from sys import stdout
	for i in range(10):
		for j in range(i+1):
			stdout.write(str(a[i][j]))
			stdout.write(' ')
		print