use std::io::{self, Read}; #[derive(Debug)] struct Input { n: i32, k: i32, } fn next_token(cin_lock: &mut io::StdinLock) -> String { cin_lock.by_ref().bytes().map(|c| c.unwrap() as char) .skip_while(|c| c.is_whitespace()) .take_while(|c| !c.is_whitespace()) .collect::() } fn read_input(cin_lock: &mut io::StdinLock) -> Input { Input { n: next_token(cin_lock).parse().unwrap(), k: next_token(cin_lock).parse().unwrap(), } } fn solve(input: &Input, _cin_lock: &mut io::StdinLock) { // rock => 0, scissors => 1, paper => 2 // w // r(0): 0 vs s(1) : other == next(self) // s(1): 1 vs p(2) : other == next(self) // p(2): 2 vs r(0) : other == next(self) // l // r(0): 0 vs p(2) : other == prev(self) // s(1): 1 vs r(0) : other == prev(self) // p(2): 2 vs s(1) : other == prev(self) let next = if input.n == 2 { 0 } else { input.n + 1 }; let prev = if input.n == 0 { 2 } else { input.n - 1 }; let r = if input.k == input.n { "Drew" } else if input.k == next { "Won" } else if input.k == prev { "Lost" } else { panic!("Wrong logic, never happens."); }; println!("{}", r); } fn main() { let cin = io::stdin(); let mut cin_lock = cin.lock(); let input = read_input(&mut cin_lock); solve(&input, &mut cin_lock); }