C1111233133313231133133313331333133313231121333133313331323132322223211   >>    C111123313331323113313331333133313331323112133313331333132313232222321   <<    C1111233133313231133133313331333133313231121333133313331323132322223213   >>      C1111233133313231133133313331333133313231121333133313331323132322223212   >>