C11112331333132311331333133313331333132313233313331333132213122231   >>    C1111233133313231133133313331333133313231323331333133313221312223   <<    C11112331333132311331333133313331333132313233313331333132213122233   >>      C11112331333132311331333133313331333132313233313331333132213122232   >>