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perl -E 'for (1 .. 100) { $! = $_; say "$_: $!" }' | grep Input
5: Input/output error

openat(AT_FDCWD, "/tmp/zz", O_WRONLY|O_CREAT|O_APPEND, 0666) = 3
lseek(3, 0, SEEK_END)                   = 0
...
lseek(3, 0, SEEK_CUR)                   = 0
fstat(3, {st_mode=S_IFREG|0664, st_size=0, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0