def chk():
    n=int(input("enterthe number to check if the number is a multiple of 2"))
    c=1
    f=0
    for i in range(0,n,1):
        if(c==n):
            print("the number is  power of two ")
            f=1
            break
        else:
            c=c*2
    if(f<1):
        print("the number is not a multiple of 2")