C11112331333132311331333133313331333132313113121323133313231311111   >>    C1111233133313231133133313331333133313231311312132313331323131111   <<    C11112331333132311331333133313331333132313113121323133313231311113   >>      C11112331333132311331333133313331333132313113121323133313231311112   >>