fn main() {
    let grid = [
        [01, 02, 03, 04, 05],
        [06, 07, 08, 09, 10],
        [11, 12, 13, 14, 15],
        [16, 07, 08, 09, 20],
        [02, 04, 07, 09, 08],
    ];
    for y in (0..grid.len()).rev() {
        for x in (0..grid[y].len()).rev() {
            let mut rowslice: Vec<u32> = Vec::new();
            let mut colslice: Vec<u32> = Vec::new();
            let mut diagslice: Vec<u32> = Vec::new();
            for i in 0..3 {
                // if y < 2 {
                //     if x < 2 {
                //         rowslice.push(grid[y][x + i]);
                //         colslice.push(grid[y + i][x]);
                //         println!("{},{},{:?}, {:?}", x, y, rowslice, colslice);
                //         println!("product = {:?}", rowslice.iter().fold(1, |acc, j| acc * j));
                //         println!("product = {:?}", colslice.iter().fold(1, |acc, j| acc * j));
                //     } else {
                //         rowslice.push(grid[y][x - i]);
                //         colslice.push(grid[y + i][x]);
                //         println!("{},{},{:?}, {:?}", x, y, rowslice, colslice);
                //         println!("product = {:?}", rowslice.iter().fold(1, |acc, j| acc * j));
                //         println!("product = {:?}", colslice.iter().fold(1, |acc, j| acc * j));
                //     }
                // } else {
                //     if x < 2 {
                //         rowslice.push(grid[y][x + i]);
                //         colslice.push(grid[y - i][x]);
                //         println!("{},{},{:?}, {:?}", x, y, rowslice, colslice);
                //         println!("product = {:?}", rowslice.iter().fold(1, |acc, j| acc * j));
                //         println!("product = {:?}", colslice.iter().fold(1, |acc, j| acc * j));
                //     } else {
                //         rowslice.push(grid[y][x - i]);
                //         colslice.push(grid[y - i][x]);
                //         println!("{},{},{:?}, {:?}", x, y, rowslice, colslice);
                //         println!("product = {:?}", rowslice.iter().fold(1, |acc, j| acc * j));
                //         println!("product = {:?}", colslice.iter().fold(1, |acc, j| acc * j));
                //     }
                // }
                match (y, x) {
                    (4,4)|(4,3)|(4,2)|(3,4)|(3,3)|(3,2)|(2,4)|(2,3)|(2,2) => { rowslice.push(grid[y][x-i]);
                                                                               println!("row{}:{:?}", y, rowslice);
                                                                               colslice.push(grid[y-i][x]);
                                                                               println!("column{}:{:?}", x, colslice);
                                                                               diagslice.push(grid[y-i][x-i]);
                                                                               println!("diag{}:{}={:?}", x, y, diagslice);
                                                                             },
                    (1,4)|(1,3)|(1,2)|(0,4)|(0,3)|(0,2) =>  { rowslice.push(grid[y][x-i]);
                                                             println!("row{}:{:?}", y, rowslice);
                                                             colslice.push(grid[y+i][x]);
                                                             println!("column{}:{:?}", x, colslice);
                                                             diagslice.push(grid[y+i][x-i]);
                                                             println!("diag{}:{}={:?}", x, y, diagslice);
                                                            },
                    (4,1)|(4,0)|(3,1)|(3,0)|(2,1)|(2,0) => { rowslice.push(grid[y][x+i]);
                                                             println!("row{}:{:?}", y, rowslice);
                                                             colslice.push(grid[y-i][x]);
                                                             println!("column{}:{:?}", x, colslice);
                                                             diagslice.push(grid[y-i][x+i]);
                                                             println!("diag{}:{}={:?}", x, y, diagslice);
                                                            },
                    (1,0)|(1,1)|(0,0)|(0,1) => { rowslice.push(grid[y][x+i]);
                                                 println!("row{}:{:?}", y, rowslice);
                                                 colslice.push(grid[y+i][x]);
                                                 println!("column{}:{:?}", x, colslice);
                                                 diagslice.push(grid[y+i][x+i]);
                                                 println!("diag{}:{}={:?}", x, y, diagslice);
                                                },
                    _ => println!("nuttin")
                }
            }
        }
    }
}