C11111333133313232233133313331333132332313112113313331321123231323133313133311   >>    C1111133313331323223313331333133313233231311211331333132112323132313331313331   <<    C11111333133313232233133313331333132332313112113313331321123231323133313133313   >>      C11111333133313232233133313331333132332313112113313331321123231323133313133312   >>