C11112331333132311331333133313331333132313233313331333131121231231   >>    C1111233133313231133133313331333133313231323331333133313112123123   <<    C11112331333132311331333133313331333132313233313331333131121231233   >>      C11112331333132311331333133313331333132313233313331333131121231232   >>