function aza(input) {

    let neighbors = 0;
    let matrix = input.map(row=>row.split(' ').map(Number));

    for (let row = 0; row < matrix.length - 1; row++)
        for (let col = 0; col < matrix[row].length; col++) {
            if (matrix[row][col] == matrix[row + 1][col]) {
                neighbors++;
            }
            if (matrix[row][col] == matrix[row][col + 1]) {
                neighbors++;
            }
            // if (matrix[row][col] == matrix[row + 1][col + 1]) {
            //     neighbors++;
            // }
        }
    console.log(neighbors);
}
//aza(['2 3 4 7 0', '4 0 5 3 4','2 3 5 4 2', '9 8 7 5 4']);
aza(['2 2 5 7 4', '4 0 5 3 4', '2 5 5 4 2']);
aza(['test', 'yes', 'yo', 'ho', 'well', 'done', 'yo', '6', 'not', 'done', 'yet', '5']);