[Input]
5
e e e e e e e
e e e e e e e
O e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e

e e e e e e e
e e e e e e e
E e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e

o o o o o o o
o o o o o o o
E o o o o o o
e e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e

o o o E o o o
o o o o o o o
o o o o o o o
e e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e

o o o o o o o
o o o E o o o
o o o o o o o
e e e e e e e
e e e e e e e
e e e e e e e
e e e e e e e

[Output]
Dataset 1:

Dataset 2:
No solution.

Dataset 3:
1. (1, 1) to (1, 3)
2. (3, 1) to (1, 1)
3. (5, 1) to (3, 1)
4. (7, 1) to (5, 1)
5. (2, 2) to (2, 4)
6. (3, 2) to (3, 4)
7. (5, 2) to (3, 2)
8. (3, 1) to (3, 3)
9. (6, 2) to (6, 4)
10. (7, 2) to (7, 4)
11. (3, 4) to (3, 2)
12. (7, 4) to (5, 4)
13. (5, 4) to (5, 2)
14. (5, 1) to (5, 3)
15. (5, 3) to (3, 3)
16. (3, 2) to (3, 4)
17. (3, 4) to (1, 4)
18. (1, 4) to (1, 2)
19. (1, 1) to (1, 3)

Dataset 4:
1. (2, 1) to (4, 1)
2. (3, 2) to (3, 4)
3. (5, 2) to (3, 2)
4. (2, 2) to (4, 2)
5. (6, 2) to (6, 4)
6. (7, 2) to (7, 4)
7. (1, 3) to (3, 3)
8. (1, 1) to (1, 3)
9. (4, 3) to (2, 3)
10. (1, 3) to (3, 3)
11. (3, 4) to (3, 2)
12. (7, 4) to (5, 4)
13. (5, 4) to (5, 2)
14. (5, 1) to (5, 3)
15. (7, 1) to (5, 1)
16. (4, 1) to (6, 1)
17. (3, 2) to (5, 2)
18. (5, 3) to (5, 1)
19. (6, 1) to (4, 1)

Dataset 5:
1. (2, 2) to (2, 4)
2. (5, 2) to (5, 4)
3. (4, 3) to (2, 3)
4. (3, 1) to (3, 3)
5. (1, 1) to (3, 1)
6. (4, 1) to (2, 1)
7. (6, 1) to (4, 1)
8. (1, 3) to (1, 1)
9. (1, 1) to (3, 1)
10. (4, 1) to (2, 1)
11. (7, 3) to (5, 3)
12. (7, 1) to (7, 3)
13. (2, 4) to (2, 2)
14. (2, 1) to (2, 3)
15. (2, 3) to (4, 3)
16. (4, 3) to (6, 3)
17. (7, 3) to (5, 3)
18. (5, 4) to (5, 2)
19. (6, 2) to (4, 2)