C111123313331323113313331323133313331333132331211113313331323133313331322131121   >>    C11112331333132311331333132313331333133313233121111331333132313331333132213112   <<    C111123313331323113313331323133313331333132331211113313331323133313331322131123   >>      C111123313331323113313331323133313331333132331211113313331323133313331322131122   >>