题解 | #数字三角形#

#双层循环
def print_pic(n):
    for i in range(1,n+1):
        for j in range(1,i+1):
            print("{} ".format(j),end="")
        print()
while True:
    try:
        num=input()
        print_pic(int(num))
    except:
        break