C1111233133313231133133313231333133313113313113313331322113231121   >>    C111123313331323113313331323133313331311331311331333132211323112   <<    C1111233133313231133133313231333133313113313113313331322113231123   >>      C1111233133313231133133313231333133313113313113313331322113231122   >>