import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.NoSuchElementException;
import java.util.Scanner;

public class Main implements Runnable { 

	public static void main(String[] args) throws IOException {
		new Thread(null, new Main(), "", Runtime.getRuntime().maxMemory()).start(); 
	}
	
	final long mod=(long)1e9+7;
	
	public void run() {
		Scanner sc=new Scanner(System.in);
		int L=sc.nextInt();
		long[] dp=new long[1010];
		dp[0]=1;
		for (int len=3;len<=1000;++len) {
			long[] ndp=Arrays.copyOf(dp, dp.length);
			for (int n=0;n<1000;++n) {
				for (int num=1;num<=(1000-n)/len;++num) {
					int nn=n+num*len;
					ndp[nn]+=dp[n];
					ndp[nn]%=mod;
				}
			}
			dp=ndp;
		}
		System.out.println(dp[L]);
	}
	
	static void tr(Object...objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}



class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
    public boolean hasNext() { skipUnprintable(); return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    
    public int nextInt() {
    	return (int)nextLong();
    }
}