C111123313331323113313331333133313331323133113313331322331311123232321   >>    C11112331333132311331333133313331333132313311331333132233131112323232   <<    C111123313331323113313331333133313331323133113313331322331311123232323   >>      C111123313331323113313331333133313331323133113313331322331311123232322   >>