program2

 sum

n=int(input("enter n : "))

sum=0

for i in range(1,n,1):

    sum=sum+i

print(sum)

even sum and odd sum    

n=int(input("enter n : "))

evensum=0

oddsum=0

for i in range(1,n,1):

    print(i)

    if(i%2==0):

        evensum=evensum+i

    else:

        oddsum=oddsum+i

 print(evensum)

print(oddsum)

factorial

n=int(input("enter a number"))

fact=1

for i in range(1,n+1,1):

    fact=fact*i

print(fact)

Bus game

n=int(input("enter a number"))

for i in range(1,n,1):

    if(i%5==0):

        print("bus")

    else:

        print(i)

Multiplication

n=int(input("enter a number"))

for i in range(1,10+1,1):

    print(n,"x",i,"=",n*i)

Prime or not

n=int(input("enter :"))

result=0

for i in range(1,n+1,1):

    if(n%i==0):

        result=result+1

if(result==2):

    print("prime")

else:

    print("notprime")

n=int(input("enter :"))

a=0

b=1

c=a+b

print(a,b,end=" ")

for i in range(1,n+1,1):

    c=a+b

    a=b

    b=c

    print(c,end=" ")