C11112331333132311331333133313331333132313113121333131111211331   >>    C1111233133313231133133313331333133313231311312133313111121133   <<    C11112331333132311331333133313331333132313113121333131111211333   >>      C11112331333132311331333133313331333132313113121333131111211332   >>