C11111333133313232233133313331333133313231312111133131121211113313221213321   >>    C1111133313331323223313331333133313331323131211113313112121111331322121332   <<    C11111333133313232233133313331333133313231312111133131121211113313221213323   >>      C11111333133313232233133313331333133313231312111133131121211113313221213322   >>