C11111333133313232233133313331333131133132313331322121111112221221321   >>    C1111133313331323223313331333133313113313231333132212111111222122132   <<    C11111333133313232233133313331333131133132313331322121111112221221323   >>      C11111333133313232233133313331333131133132313331322121111112221221322   >>