check some tests
input
5 5
1 5
1 3
0
output
1 3

input
5 5
1 5
1 3
10000000
output
1 1
1 2
1 3
1 4
1 5

input
100 100
51 50
1 1
1000000
output
1 1
1 2
...
51 51
51 50
#10000 points

input
2 100
2 1
1 1
100000
output
1 1
1 2
...
1 99
1 100
2 100
2 99
...
2 2
2 1
#200 points

Just check more carefully borders you print!
For example (Lara's position - T) can be less or equal to zero. Try this test:

2 2
2 1
2 1
4