C11111211113313112113313331333133313331333132322121111331322313231   >>    C1111121111331311211331333133313331333133313232212111133132231323   <<    C11111211113313112113313331333133313331333132322121111331322313233   >>      C11111211113313112113313331333133313331333132322121111331322313232   >>