C11112331333132311331333133313331333132313233313233313231311112231   >>    C1111233133313231133133313331333133313231323331323331323131111223   <<    C11112331333132311331333133313331333132313233313233313231311112233   >>      C11112331333132311331333133313331333132313233313233313231311112232   >>