C111123313331323113313331313331333132313331322121111331323232233131111   >>    C11112331333132311331333131333133313231333132212111133132323223313111   <<    C111123313331323113313331313331333132313331322121111331323232233131113   >>      C111123313331323113313331313331333132313331322121111331323232233131112   >>