In [30]:

    

for i in range(0,5):
        print(" "*(5-i),end="")
        print("* "*(i+1))


    

    




     * 
    * * 
   * * * 
  * * * * 
 * * * * * 

In [42]:

    

for i in range(9):
        i=i+1
        for j in range(i):
                j=j+1
                print(i,"*",j,"=",i*j,end="\t")
        print("")


    

    




1 * 1 = 1	
2 * 1 = 2	2 * 2 = 4	
3 * 1 = 3	3 * 2 = 6	3 * 3 = 9	
4 * 1 = 4	4 * 2 = 8	4 * 3 = 12	4 * 4 = 16	
5 * 1 = 5	5 * 2 = 10	5 * 3 = 15	5 * 4 = 20	5 * 5 = 25	
6 * 1 = 6	6 * 2 = 12	6 * 3 = 18	6 * 4 = 24	6 * 5 = 30	6 * 6 = 36	
7 * 1 = 7	7 * 2 = 14	7 * 3 = 21	7 * 4 = 28	7 * 5 = 35	7 * 6 = 42	7 * 7 = 49	
8 * 1 = 8	8 * 2 = 16	8 * 3 = 24	8 * 4 = 32	8 * 5 = 40	8 * 6 = 48	8 * 7 = 56	8 * 8 = 64	
9 * 1 = 9	9 * 2 = 18	9 * 3 = 27	9 * 4 = 36	9 * 5 = 45	9 * 6 = 54	9 * 7 = 63	9 * 8 = 72	9 * 9 = 81	

In [50]:

    

def zhi(n):
    i=2
    flag =1
while(i<n):
    if(n%i==0):
        flag=0
        i=i+1
if(flag):
        return 1
else:
        return 0

n= int(input('pls enter :'))
test=0
for i in range(2,n):
    if(test==0):
    if(zhi(i)):
    for j in range(2,n):
    if(zhi(j)):
        if(i+j==n):
                print(i,",",j)
                test=1
if(test==0):
print("不能")


    

    




  File "<ipython-input-50-ee57559ba8f0>", line 17
    if(zhi(i)):
     ^
IndentationError: expected an indented block

In [ ]:

    

for i in range(16):
    i=i+1
    print(i,i+4)