Main thread starting
.t1 starting
t3 starting
t2 starting
....t2, i = 0
t3, i = 0
t1, i = 0
....t3, i = 1
t2, i = 1
t1, i = 1
....t3, i = 2
t2, i = 2
t1, i = 2
....t2, i = 3
t3, i = 3
t1, i = 3
....t3, i = 4
t2, i = 4
t1, i = 4
...t3, i = 5
t2, i = 5
.t1, i = 5
...t2, i = 6
t3, i = 6
.t1, i = 6
...t3, i = 7
t2, i = 7
.t1, i = 7
...t3, i = 8
t2, i = 8
.t1, i = 8
...t3, i = 9
t3 ending
t2, i = 9
t2 ending
.t1, i = 9
t1 ending
Main thread ending

Process finished with exit code 0