C11111333133313232233133313331333133313231312111133131333131111321   >>    C1111133313331323223313331333133313331323131211113313133313111132   <<    C11111333133313232233133313331333133313231312111133131333131111323   >>      C11111333133313232233133313331333133313231312111133131333131111322   >>