//No.67 よくある棒を切る問題 (1)
//v1
import std.stdio;
import std.conv;
void main() {
uint n, k, total = 0;
uint[] l;

readf("%s\n", &n);
l.length = n;

char[] buf;
readln(buf);
size_t bufLength = buf.length - 1;
size_t counter = 0;
uint tmp = 0;
for(size_t i = 0; i<bufLength; i++) {
	char c = buf[i];
	if(c != ' ')
		tmp = tmp * 10 + (c - '0');
	else {
		l[counter++] = tmp;
		tmp = 0;
	}
}
l[counter] = tmp;

readf("%s\n", &k);
foreach(i; l) {
	total += i/k;
}
writeln(total);
}