let n = Int(readLine()!)!
var ab = [[Int]]()
for _ in 0..<n{
    ab += [readLine()!.split(separator: " ").map{Int($0)!}]
}
var d = [Int:[Int]]()
for i in ab{
    d[i[0] + i[1]] = i
}
var k : Array = Array(d.keys)
k.sort(){$0 < $1}

var s = 0
var t = ""
for i in k{
    if s > d[i]![1]{
        t = "No"
        break
    }else{
        s += d[i]![0]
    }
}
print("Yes")