function legoBlocks(n, m) {
    const combinations = summa([], m);
    return buildFigure(combinations, [], n)
}

function buildFigure(combinations, figure, n) {
    if (figure.length < n) {
        return combinations.reduce((prev, element) => {
            if (figure.length > 0 && figure[figure.length - 1].length > 1 && element.length > 1) {
                for(let j = 0; j < figure[figure.length - 1].length; j++) {
                    if (Array.from(figure[figure.length - 1])[j] === Array.from(element)[j]) {
                        return prev
                    }
                }
            }
            return prev + buildFigure(combinations, figure.concat(element), n)
        }, 0)
    } else {
        //figure.forEach(row => console.log(row))
        return 1;
    }
}

function summa(row, m) {
    const tempSumma = row.reduce((prev, block) => prev + block, 0);
    if (tempSumma < m) {
        //console.log(`Is little ${row} - ${tempSumma}`)
        return [1, 2, 3, 4].flatMap(newBlock => {
            if (tempSumma + newBlock <= m) {
                return summa(row.concat([newBlock]), m)
            } else return ''
        }).filter(row => row.length > 0)
    } else if (tempSumma === m) {
        //console.log(`${row} - ${m}`)
        return row.join(' ')
    } else {
        return ''
    }
}

1 1
2
1 1

1 1
2
2

2
1 1
2

2
2
1 1

2
2
2