use std::io::{Write, BufWriter}; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes.by_ref().map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr,) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::>() }; ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } fn main() { let out = std::io::stdout(); let mut out = BufWriter::new(out.lock()); macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););} input! { q: usize, nt: [(i64, i64); q], } for (n, t) in nt { if n == 3 { puts!("Yes\n1 2 {}\n1 3 0\n2 3 0\n", t); continue; } if t % 2 == 0 { puts!("Yes\n"); for i in 0..n { for j in i + 1..n { puts!("{} {} {}\n", i + 1, j + 1, if i == 0 { t / 2 } else { 0 }); } } continue; } if t % n == 0 { puts!("Yes\n"); for i in 0..n { for j in i + 1..n { puts!("{} {} {}\n", i + 1, j + 1, t / n); } } continue; } puts!("No\n"); } }