C11223331333132322331333131133132313331323131133132313233313231121   >>    C1122333133313232233133313113313231333132313113313231323331323112   <<    C11223331333132322331333131133132313331323131133132313233313231123   >>      C11223331333132322331333131133132313331323131133132313233313231122   >>