C31313132333131133132233132233131121133132333131333132313233112121   >>    C3131313233313113313223313223313112113313233313133313231323311212   <<    C31313132333131133132233132233131121133132333131333132313233112123   >>      C31313132333131133132233132233131121133132333131333132313233112122   >>