C31313132333131133132233132233131121133132333132233132311111121   >>    C3131313233313113313223313223313112113313233313223313231111112   <<    C31313132333131133132233132233131121133132333132233132311111123   >>      C31313132333131133132233132233131121133132333132233132311111122   >>