k = 1

while k < 37:

if((k * 2 + (36 - k) * 4) == 100):

  print("Số gà là: ", k)

  print("Số chó là: ", 36-k)

k = k + 1

k=int(input('so tu nhien k la')

c=0

for i in range(1;11):

         k=k*i

         c=k

print (c)

n=int(input('gia tri cua n la:')

Tong=1/2

while (n>1 and n<20 or n==20):

          Tong= tong*1/2

print('tong la',tong)

#1,2)n=int(input('so tu nhien n la:'))

tong=0

tich=0

for i in range(0;n+1):

      tong= tong+(tong+i)**2

print('tong la',tong)

 #  3) 

          tich=(n*(n+1)*(2*n+1))/6

print ('tich la:',tich)  

#4)

if tong>tich 

    print(' tong co gia tri lon hon tich')

else

 print('tich lon hon tong')

n=int(input('gia tri cua n la:'))

For i in range(0;n):

       n==n*i

print('tich la',n)

N=int(input('so ngay co trong nam 2024 la:')

If N%400=0 or N%4=0 and N%100!=0

      print(' 2024 la nam nhuan')

Else

      print('2024 khong la nam nhuan ')

N=float(' khoi luong cam ma khach hang mua la:')

If N<5

    print('tong so tien khach hnag phai tra la:',N*20000,'dong')

Else 

     print('so tien khach hang phai tra la:',B*18000,'dong')