print("Hi, I am Ran, your personal bot.")
while True:
    z= input('do you want to add, subtract, multiply, divide, or find the average ? ')
    if z==('add') or z==('+'):
        x= input('enter 1st no: ')
        y= input('enter 2nd no: ')
        x=int(x)
        y=int(y)
        r=x+y
        print(x,'+',y,'=',str(r))
    elif z==('subtract') or z==('-'):
        x= input('enter 1st no: ')
        y= input('enter 2nd no: ')
        x=int(x)
        y=int(y)
        r=x-y
        print(x,'-',y,'=',str(r))
    elif z==('multiply') or z==('*'):
        x= input('enter 1st no: ')
        y= input('enter 2nd no: ')
        x=int(x)
        y=int(y)
        r=x*y
        print(x,'*',y,'=',str(r))
    elif z==('divide') or z==('/'):
        x= input('enter 1st no: ')
        y= input('enter 2nd no: ')
        x=int(x)
        y=int(y)
        r=x/y
        print(x,'÷',y,'=',str(r))
    elif z==('average'):
        how=input("how many numbers? ")
        how=int(how)
        total=0
        for count in range(how):
            number=input('enter number '+ str(count)+ ': ')
            number=int(number)
            total=total+number
        r=total/how
        print('Average=', total, '÷', how, '=', r)
    elif z=='bye':
        break
    else: print('not identified')
    print('done!')
print('** see you later **')