fun main(args: Array<String>) {
    println(getAns())
}

fun getAns():Long {
    val n = readLine()!!.toInt()
    val a = readLine()!!.split(" ").map { it.toLong() }
    val b = readLine()!!.split(" ").map { it.toLong() }
    val x = readLine()!!.split(" ").map { it.toLong() }
    val y = readLine()!!.split(" ").map { it.toLong() }

    var ans = 0L
    for(i in 0 until n) {
        var total = a[i*2] + a[i*2+1] + x[i]
        total = Math.max(total, a[i*2]+b[i*2+1]+y[i])
        total = Math.max(total, b[i*2]+a[i*2+1]+y[i])
        total = Math.max(total, b[i*2]+b[i*2+1]+x[i])
        ans += total
    }
    return ans
}