import string

def excute():
    line = raw_input();
    my_array = line.split();
    result = 2;
    for element in my_array:
  #      print element;
        result = result*string.atoi(element);
    print result;
    return 0;
if __name__ == '__main__':
    excute();

Edited by author 03.04.2016 11:22

Edited by author 03.04.2016 11:23

caused by printed new line