C11112331333132311331333133313331333132312323133313331333132223211   >>    C1111233133313231133133313331333133313231232313331333133313222321   <<    C11112331333132311331333133313331333132312323133313331333132223213   >>      C11112331333132311331333133313331333132312323133313331333132223212   >>