C11111333133313232233133313331333133313231322321111331323223313133321   >>    C1111133313331323223313331333133313331323132232111133132322331313332   <<    C11111333133313232233133313331333133313231322321111331323223313133323   >>      C11111333133313232233133313331333133313231322321111331323223313133322   >>