C3131313233313113313223313223313112113313231323111133132322333231   >>    C313131323331311331322331322331311211331323132311113313232233323   <<    C3131313233313113313223313223313112113313231323111133132322333233   >>      C3131313233313113313223313223313112113313231323111133132322333232   >>