C11111333133313232233133313331333133313232233312111133132311331313321   >>    C1111133313331323223313331333133313331323223331211113313231133131332   <<    C11111333133313232233133313331333133313232233312111133132311331313323   >>      C11111333133313232233133313331333133313232233312111133132311331313322   >>