// ---------- begin transpose ----------
fn transpose<T>(a: Vec<Vec<T>>) -> Vec<Vec<T>> {
    if a.is_empty() {
        return a;
    }
    let h = a.len();
    let w = a[0].len();
    assert!(a.iter().all(|a| a.len() == w));
    let mut ta: Vec<_> = (0..w).map(|_| Vec::with_capacity(h)).collect();
    for a in a {
        for (ta, a) in ta.iter_mut().zip(a) {
            ta.push(a);
        }
    }
    ta
}
// ---------- end transpose ----------
// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------

use std::io::Write;
use std::collections::*;

type Map<K, V> = BTreeMap<K, V>;
type Set<T> = BTreeSet<T>;
type Deque<T> = VecDeque<T>;

fn solve(h: usize, w: usize) -> Vec<Vec<usize>> {
    let mut x = [[2, 2, 1], [2, 2, 1], [1, 1, 0]];
    if h % 3 == 1 {
        x.rotate_right(1);
    }
    if w % 3 == 1 {
        for x in x.iter_mut() {
            x.rotate_right(1);
        }
    }
    let mut ans = vec![vec![5; w]; h];
    for (ans, x) in ans.iter_mut().zip(x.iter().cycle()) {
        for (ans, x) in ans.iter_mut().zip(x.iter().cycle()) {
            *ans = *x;
        }
    }
    ans
}

fn run() {
    input! {
        t: usize,
        ask: [(usize, usize); t],
    }
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    for (h, w) in ask {
        let ans = solve(h, w);
        let mut s = String::new();
        for a in ans {
            for a in a {
                s.push_str(&format!("{} ", a));
            }
            s.pop();
            s.push('\n');
        }
        write!(out, "{}", s).ok();
    }
}

fn main() {
    run();
}