namespace;
include rt;
unchecked fn main() {
 int left_fd = 0, right_fd = 0;
 let started = rt.syscall(50, 0, 0, 0);
 let left = rt.syscall(51, fn() { int value = 11; rt.syscall(48, 300, 0, 0); rt.syscall(44, left_fd, &value, 1); return 0; } as word, &left_fd, 0);
 let right = rt.syscall(51, fn() { int value = 21; rt.syscall(48, 300, 0, 0); rt.syscall(44, right_fd, &value, 1); return 0; } as word, &right_fd, 0);
 int a, b; rt.syscall(45, left_fd, &a, 1); rt.syscall(45, right_fd, &b, 1);
 rt.put_n(a); rt.put_c(' '); rt.put_n(b); rt.put_c(10); rt.put_n(rt.syscall(50, 0, 0, 0) - started); rt.put_c(10);
 rt.syscall(52, left, 0, 0); rt.syscall(52, right, 0, 0); return 0;
}