import java.lang.Math

fun main(args : Array<String>){
    var fossil = readLine()!!.split('.').map { it.toInt() }
    var current = readLine()!!.split('.').map { it.toInt() }
    var f_sum = 0
    var c_sum = 0

    for(i in 0..2) {
        f_sum += fossil[i]*Math.pow(1000.0, (2 - i).toDouble()).toInt()
        c_sum += current[i] * Math.pow(1000.0,(2 - i).toDouble()).toInt()
    }
    if(c_sum > f_sum)
        println("NO")
    else
        println("YES")
}