C111123313331323113313331313331333132313331322121133132311211331   >>    C11112331333132311331333131333133313231333132212113313231121133   <<    C111123313331323113313331313331333132313331322121133132311211333   >>      C111123313331323113313331313331333132313331322121133132311211332   >>