lua, 55 bytes

Result

WA

Duration

811ms

Code [DL]

for x in io.lines()do print(x:match("(%d) ?%1")or 1)end

stdin

611 135
188 998
931 338
722 818
277 379
144 448
262 246
157 551
441 174
771 744
295 957
656 867
864 778
165 557
294 986
337 832
639 996
211 441
717 721
122 225
362 778
568 585
633 927
899 191
972 414
741 418
877 783
331 134
827 322
276 624
285 582
643 278

stdout

1
8
3
2
7
4
2
5
4
7
1
1
7
5
1
3
9
1
7
2
7
1
3
9
1
1
7
3
2
6
5
1

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffef8864440 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x5584dff42d30 /* 7 vars */ <unfinished ...>
12    execve("/usr/bin/lua5.3", ["/usr/bin/lua5.3", "/volume/CODE"], 0x5584dff42d40 /* 7 vars */ <unfinished ...>
11    <... execve resumed>)             = 0
12    <... execve resumed>)             = 0
11    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
12    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
10    +++ exited with 0 +++