C11112331333132311331333133313331333132313121111331333131311122111   >>    C1111233133313231133133313331333133313231312111133133313131112211   <<    C11112331333132311331333133313331333132313121111331333131311122113   >>      C11112331333132311331333133313331333132313121111331333131311122112   >>