diff --git a/src/bin/tos1.rs b/src/bin/tos1.rs
new file mode 100644
index 0000000..af8cffc
--- /dev/null
+++ b/src/bin/tos1.rs
@@ -0,0 +1,111 @@
+use app::client::*;
+// use std;
+use std::convert::*;
+use rand::Rng;
+
+fn run() {
+	let mut rng = rand::thread_rng();
+	let server_url = std::env::args().nth(1).unwrap();
+	let mut client = Client::new(server_url);
+	if std::env::args().len() == 2 {
+		client.send("[1, 0]");
+		return;
+	}
+	let player_key = std::env::args().nth(2).unwrap();
+	let mut resp = client.join(&player_key);
+	let power = 32;
+	let cool = 0;
+	let life = 1;
+	resp = client.start(resp.info.ability.potential - power * 4 - cool * 12 - life * 2, power, cool, life);
+
+	// let mut dx: i32 = std::env::var("DX").unwrap().parse().unwrap();
+	// let dy: i32 = std::env::var("DY").unwrap().parse().unwrap();
+	let mut dx = 0;
+	let mut dy = 0;
+	while resp.stage != 2 {
+		let mut myship = None;
+		for ship in resp.state.ships.iter() {
+			if ship.role != resp.info.role {
+				continue;
+			}
+			myship = Some(ship.clone());
+		}
+		let myship = myship.unwrap();
+
+		let mut commands = vec![];
+
+		{
+			// anti gravity
+			let (x, y) = myship.pos;
+			// println!("{}, {}", x, y);
+			// assert_eq!(myship.v, (0, 0));
+			// println!("{:?}", myship.v);
+			let (gx, gy) = gravity(x, y);
+			// println!("{}, {}", gx, gy);
+			commands.push(
+				Command::Accelerate(myship.id, gravity(x, y))
+			);
+		}
+		
+		let shoot_now = myship.heat -myship.status.cool + 16 <= myship.max_heat;
+		if shoot_now {
+			let fix = resp.info.role;
+			// dx = rng.gen_range(0, 20) + fix;
+			dx = rng.gen_range(32, 96) + fix;
+			// dy = rng.gen_range(0, 20) + fix;
+			dy = 0;
+			let shoot_power = power;
+			commands.push(Command::Shoot(1, (myship.pos.0 + dx, myship.pos.1 + dy), shoot_power, None));
+		}
+
+		// !!!
+		resp = client.command(&commands);
+		// !!!
+
+		if shoot_now {
+			// println!("{}", resp);
+			println!("S H O O O O O O O T ! ! ! ! ! ! !");
+			for ship in resp.state.ships.iter() {
+				for cmd in ship.commands.iter() {
+					match cmd {
+						Command::Shoot(_, (x,y), p, Some((impact, four))) => {
+							println!("_, x, y, power, impact, four");
+							println!("[shoot], {}, {}, {}, {}, {}",
+								x - ship.pos.0,y - ship.pos.1, p, impact, four);
+						},
+						_=> {},
+					}
+				}
+			}
+		}
+	}
+}
+
+fn main() {
+	let _ = ::std::thread::Builder::new()
+		.name("run".to_string())
+		.stack_size(32 * 1024 * 1024)
+		.spawn(run)
+		.unwrap()
+		.join();
+}
+
+fn gravity(x: i32, y: i32) -> (i32, i32) {
+	(
+		if x.abs() >= y.abs() {
+			if x < 0 {
+				1
+			} else {
+				-1
+			}
+		} else { 0 },
+
+		if x.abs() <= y.abs() {
+			if y < 0 {
+				1
+			} else {
+				-1
+			}
+		} else { 0 },
+	)
+}
\ No newline at end of file