C111123313331323113313331333133313331323133112113313221211211121   >>    C11112331333132311331333133313331333132313311211331322121121112   <<    C111123313331323113313331333133313331323133112113313221211211123   >>      C111123313331323113313331333133313331323133112113313221211211122   >>