counter=1
while counter<100:
    if counter%2==0:
        print(counter)
    counter = counter+1




n = 1
while n<100:
    n=n+1
    print(n)




i=1
sum=0
while i<100:
    sum=sum+i
    i=i+1
    print(sum,i)





i=51
while i<=100:
    i=i+2
    print(i)



i=50
while i<=100:
  if i%2!=0:
   print(i)
  i=i+1
       
i=891
while i<931:
    z= i-890
    if z%3==0:
       print(i)
       i=i+1

i=1
while i<=10:
     print(i*5)
     i=i+1


i=1
while i<=100:
    if i%2==0:
        print(-i)
    else:
        print(i)
    i=i+1





i=2
num=int(input("enter the number"))
while i <num:
    if num%i==0:
        print(num,"not praim number")
        break
    i=i+1
else:
    print(num,"praim number")



i=int(input("enter the number"))
a=1
b=0
while a<i:
    if (i%a==0):
        b=b+1
    i=i+1
if b==a:
    print("praim hai")
else:
    print("not praim")




num=int(input("enter the praim number"))
if num%2!=0:
    print("praim number hai")
elif num==2:
    print("praim number hai")
else:
    print("not praim number")


