const isValidTriangle = (a, b, c) => (a + b > c) && (a + c > b) && (b + c > a);

const parseNumsInLine = line => line.trim().split(/\s+/).map(str => parseInt(str, 10));

const solve = input => input.split('\n').filter(line => isValidTriangle(...parseNumsInLine(line))).length;

const solve2 = input => {
    let data = input.split('\n').map(parseNumsInLine);
    let valid = 0;
    for (let i = 0; i+2 < data.length; i+=3) {
        for (let j = 0; j < 3; j++) {
            let a = data[i][j], b = data[i+1][j], c = data[i+2][j];
            if (isValidTriangle(a, b, c)) {
                valid++;
            }
        }
    }
    return valid;
};

console.log(`Valid triangle: ${solve(input)}`);
console.log(`Valid vertical triangle: ${solve2(input)}`);