C1111233133313231133133313331333133313231121333133313331211111321123221   >>    C111123313331323113313331333133313331323112133313331333121111132112322   <<    C1111233133313231133133313331333133313231121333133313331211111321123223   >>      C1111233133313231133133313331333133313231121333133313331211111321123222   >>