Final

num1=int(input('num1: '))

num2=int(input('num2: '))

f1=0

f2=0


if(num1 <0):

    f1=1

if(num2 <0):

    f2=1


absolutenum1 = abs(num1)

absolutenum2 = abs(num2)


finalresult = 0


while(absolutenum2 > 0):

    if(absolutenum2 % 2==1):

       finalresult = finalresult + absolutenum1;

    absolutenum1 = absolutenum1*2

    absolutenum2 = absolutenum2//2;

if(f1==1 and f2==1):   

    print(finalresult)

if(f1==0 and f2==0):

    print(finalresult)

if(f1 != f2):

    print('-',finalresult)