$ ./thread 
thread0: 0
thread0: 1
thread0: 2
thread0: 3
thread0: 4
primordial: Enter Character
primordial: read j
"j\n"
primordial: 0
thread0: 5
primordial: 1
thread0: 6
primordial: 2
thread0: 7
primordial: 3
thread0: 8
primordial: 4
thread0: 9
thread1: Enter Character
thread1: read j
"j\n"
primordial: 5
thread0: 10
primordial: 6
thread0: 11
primordial: 7
thread0: 12
primordial: 8
thread0: 13
primordial: 9
thread0: 14
^C