import java.util.*;
import java.io.*;
import java.math.*;
import java.util.stream.Stream;

public class Main{
    /* 入出力 */
    static BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
    static StringTokenizer st;
    static PrintWriter output = new PrintWriter(System.out);
    static Scanner sc = new Scanner(System.in);
    /* 定数 */
    static final int [] y4 = {0,1,0,-1};
    static final int [] x4 = {1,0,-1,0};
    static final int  INF1 = Integer.MAX_VALUE;
    static final long INF2 = Long.MAX_VALUE;
    static final long MOD1 = (long)1e9+7;
    static final long MOD2 = 998244353;
    /* Main */
    public static void main(String[] args) throws IOException{
        /*
         * bit全探索
         */
        String s = sc.next();
        int len = s.length();
        int ans = 0;
        Set<String> size = new HashSet<>();
        for(int i=0;i<(1<<len);i++) {
            int c1 = 0;
            int c2 = 0;
            int c3 = 0;
            StringBuilder sb = new StringBuilder();
            for(int j=0;j<len;j++) {
                int bit = (i>>j)&1;
                if(bit == 1) {
                    if(s.charAt(j) == 'l'){
                        sb.append("1");
                        c2++;
                    }
                    else if(s.charAt(j) == 'o'){
                        sb.append("0");
                        c2++;
                    }
                    else if(s.charAt(j) == 'a'){
                        sb.append("@");
                        c3++;
                    }
                    else if(s.charAt(j) == 's'){
                        sb.append("$");
                        c3++;
                    }
                    else{
                        sb.append(s.substring(j,j+1));
                        c1++;
                    }
                }
                else{
                    sb.append(s.substring(j,j+1));
                    c1++;
                }
            }
            if(c1 >= 1 && c2 >= 1 && c3 >= 1) {
                size.add(sb.toString());
            }
        }
        output.print(size.size());
        output.flush();        
    }
}