打印数字三角形

n=int(input())
list_s=[]
for i in range(1,n+1):
    list_s.append(i)
z=1
for i in range(n):
    if i == 0  :
        for j in range(1,n):
            print("%-3d"%j,end="")
        print(j+1)
    else:
        for j in range(n-i):
            li2 = list_s[z - 1] + list_s[z]
            if j==n-i-1:
                print(li2)
            else:
                print("%-3d"%li2,end="")
            list_s.append(li2)
            z += 1
        z+=1