inside_volume

function solve(input) {
    for (let i = 0; i<input.length; i+=3){
        let x = input[i];
        let y = input[i+1];
        let z = input[i+2];

        if (inVolume(x,y,z)){
            console.log('inside');
        }  else {
            console.log('outside');
        }
    }

    function inVolume(x, y, z) {
        let x1 = 10, x2 = 50;
        let y1 = 20, y2 = 80;
        let z1 = 15, z2 = 50;

        return x1 <= x && x <= x2 && y1 <= y && y <= y2 && z1 <= z && z <= z2;
    }

}