
adad_aval = float(input('adad '))
alamat = (input('alamat '))
adad_dovom = float(input('adad '))
if alamat!=+ :  
    print('lotfan faghat  alamat haye + - * / % ** va ... ra vared konid')
    if alamat!=- :
        print('lotfan faghat  alamat haye + - * / % ** va ... ra vared konid')
        if alamat!=*
            print('lotfan faghat  alamat haye + - * / % ** va ... ra vared konid')
            if alamat!=/ :
                print('lotfan faghat  alamat haye + - * / % ** va ... ra vared konid')
                if alamat!=% :
                    print('lotfan faghat  alamat haye + - * / % ** va ... ra vared konid')
                    if alamat!=** :
                        print('lotfan faghat  alamat haye + - * / % ** va ... ra vared konid')
javab = adad_aval,alamat,adad_dovom
print (javab)
 

