C11223331333132322331333131133132313331311331311221123231312321   >>    C1122333133313232233133313113313231333131133131122112323131232   <<    C11223331333132322331333131133132313331311331311221123231312323   >>      C11223331333132322331333131133132313331311331311221123231312322   >>