import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int length = sc.nextInt();
		boolean flag = true;
		long tate = 1;
		HashSet<Triangle> set = new HashSet<>();
		while (flag) {
		    long yoko = tate + 1;
		    while (flag) {
		        Triangle t = new Triangle(tate, yoko);
		        if (t.length() > length) {
		            if (yoko == tate + 1) {
		                flag = false;
		            }
		            break;
		        } else {
		            if (t.isOrg()) {
		                set.add(t);
		            }
		        }
		        yoko++;
		    }
		    tate++;
		}
		System.out.println(set.size());
	}
	
	static class Triangle {
	    long[] abc = new long[3];
	    
	    public Triangle(long tate, long yoko) {
	        abc[0] = yoko * yoko - tate * tate;
	        abc[1] = yoko * tate * 2;
	        abc[2] = yoko * yoko + tate * tate;
	        Arrays.sort(abc);
	    }
	    
	    public boolean isOrg() {
	        return getGCD(abc) == 1;
	    }
	    
	    public boolean equals(Object o) {
	        Triangle t = (Triangle)o;
	        for (int i = 0; i < 3; i++) {
	            if (abc[i] != t.abc[i]) {
	                return false;
	            }
	        }
	        return true;
	    }
	    
	    public long length() {
	        long ans = 0;
	        for (int i = 0; i < 3; i++) {
	            ans += abc[i];
	        }
	        return ans * 4;
	    }
	    
	    public int hashCode() {
	        return (int)abc[0];
	    }
	    
	    public String toString() {
	        return abc[0] + ":" + abc[1] + ":" + abc[2];
	    }
	}
	
	static long getGCD(long x, long y) {
	    if (x % y == 0) {
	        return y;
	    } else {
	        return getGCD(y, x % y);
	    }
	}
	
	static long getGCD(long[] arr) {
	    long ans = arr[0];
	    for (int i = 1; i < arr.length; i++) {
	        ans = getGCD(ans, arr[i]);
	    }
	    return ans;
	}
}