N plus

N plusN plusN plusN plus
N plusN plusN plusN plusN plusN plusN plusN plus
N plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plus
N plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plusN plus
N plusN plusN plusN plusN plusN plusN plusN plus