C11112331333132311331333133313331333132313233313113313132322231   >>    C1111233133313231133133313331333133313231323331311331313232223   <<    C11112331333132311331333133313331333132313233313113313132322233   >>      C11112331333132311331333133313331333132313233313113313132322232   >>