import java.util.Scanner;

public class MatchCount {

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		String str = "LCYFQPNGCYTNKVVEAKKYNKTFSWD"
				+ "YRNAEERQQOCCMHSPFSHAEKRZIUVLEIWPYYAZINWAEVYDFI"
				+ "ZCYDFIDZEJVLOAIRLOODDCDSRXCEOKYCALRECHHZTFPNTIW"
				+ "ATJKFPMVJQLGVRSEODRRTCRCJJAEUQPNUJGEBRTIZNCPYQRZ"
				+ "VLOLPRGCPCRLPIJRQDUDVBEOYRTPTYVAZRIVAEKVPAZMGRPPT"
				+ "YVKPSJREPFIFKEHVGJLNVNGEHKYCNOIICNTCPCYCIPNEEUDCD"
				+ "SRXCTFKYCJMRKASTYVNWAEVGDFIZCYDCPGQNFKGESKYCPNVDW"
				+ "SONVTPRKYCPNVDWNAEJCYDRCYCGVESXBVIMQCYFQPNDVQDAXV"
				+ "QEOFECZFPFSCPCRLPSREBWOFBYETYVPPSLCRTNXTGAHVIRPXKJ"
				+ "GQTYZQLLCFUDTYVKEOUVBFCVKFPKVPRSEVECXYTRLPQLZNEHVZ"
				+ "PALRECDSFKFPYTRLXAJHSPRRUCLSWIGPNUCW";
		String str2 = "LCYFQPNGCYTNKVVEAKKYNKTFSWD"
				+ "YRNAEERQQOCCMHSPFSHAEKRZIUVLEIWPYYAZINWAEVYDFI"
				+ "ZCYDFIDZEJVLOAIRLOODDCDSRXCEOKYCALRECHHZTFPNTIW"
				+ "ATJKFPMVJQLGVRSEODRRTCRCJJAEUQPNUJGEBRTIZNCPYQRZ"
				+ "VLOLPRGCPCRLPIJRQDUDVBEOYRTPTYVAZRIVAEKVPAZMGRPPT"
				+ "YVKPSJREPFIFKEHVGJLNVNGEHKYCNOIICNTCPCYCIPNEEUDCD"
				+ "SRXCTFKYCJMRKASTYVNWAEVGDFIZCYDCPGQNFKGESKYCPNVDW"
				+ "SONVTPRKYCPNVDWNAEJCYDRCYCGVESXBVIMQCYFQPNDVQDAXV"
				+ "QEOFECZFPFSCPCRLPSREBWOFBYETYVPPSLCRTNXTGAHVIRPXKJ"
				+ "GQTYZQLLCFUDTYVKEOUVBFCVKFPKVPRSEVECXYTRLPQLZNEHVZ"
				+ "PALRECDSFKFPYTRLXAJHSPRRUCLSWIGPNUCW";
		System.out.println("input displacement");
		int spaceNum = input.nextInt();
		String spaces = "";
		for(int i = 0; i<spaceNum; i++) {
			spaces = spaces + " ";
		}
		str2 = spaces+str2;
		char arr1[] = str.toCharArray();
		char arr2[] = str2.toCharArray();
		int count = 0;
		for(int i = 0; i < arr1.length; i++) {
			if(arr1[i] == arr2[i]) {
				count++;
			}
		}
		System.out.println(count);

	}

}