C11111211113313112113313331333133313331333132313331333133313331333133322131111   >>    C1111121111331311211331333133313331333133313231333133313331333133313332213111   <<    C11111211113313112113313331333133313331333132313331333133313331333133322131113   >>      C11111211113313112113313331333133313331333132313331333133313331333133322131112   >>