C31313132333131133132233132233131121133132313233313231232322131   >>    C3131313233313113313223313223313112113313231323331323123232213   <<    C31313132333131133132233132233131121133132313233313231232322133   >>      C31313132333131133132233132233131121133132313233313231232322132   >>