C1111233133313231133133313331333133313231331133132313231311213111   >>    C111123313331323113313331333133313331323133113313231323131121311   <<    C1111233133313231133133313331333133313231331133132313231311213113   >>      C1111233133313231133133313331333133313231331133132313231311213112   >>