C1111233133313231133133313331333131211111311211331333132321133131231   >>    C111123313331323113313331333133313121111131121133133313232113313123   <<    C1111233133313231133133313331333131211111311211331333132321133131233   >>      C1111233133313231133133313331333131211111311211331333132321133131232   >>