C11111333133313232233133313331333133313231312111133131121211111121321   >>    C1111133313331323223313331333133313331323131211113313112121111112132   <<    C11111333133313232233133313331333133313231312111133131121211111121323   >>      C11111333133313232233133313331333133313231312111133131121211111121322   >>