C11112331333132311331333133313331323133313231131211113313223313231123221   >>    C1111233133313231133133313331333132313331323113121111331322331323112322   <<    C11112331333132311331333133313331323133313231131211113313223313231123223   >>      C11112331333132311331333133313331323133313231131211113313223313231123222   >>