function incNetMap (inc) {
    inc = parseInt(inc);
    return netMap.split("\n").map((line) => {
        if (line.trim() === '') return  line;
        if (line.startsWith("#")) return line;
        return line.trim().split(" ").map((dev) => {
            var d = dev.split(":");
            return (parseInt(d[0]) + inc).toString() + ":" + d[1]
        }).join(" ")
    }).join("\n");
}