C11111333133313232233133313331333133313231312111133132212111113112131   >>    C1111133313331323223313331333133313331323131211113313221211111311213   <<    C11111333133313232233133313331333133313231312111133132212111113112133   >>      C11111333133313232233133313331333133313231312111133132212111113112132   >>