C11112331333132311331333133313331333132312323133313231313113231   >>    C1111233133313231133133313331333133313231232313331323131311323   <<    C11112331333132311331333133313331333132312323133313231313113233   >>      C11112331333132311331333133313331333132312323133313231313113232   >>