C31313132333131133132233132233131121133132333132233132312323221   >>    C3131313233313113313223313223313112113313233313223313231232322   <<    C31313132333131133132233132233131121133132333132233132312323223   >>      C31313132333131133132233132233131121133132333132233132312323222   >>