#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
#define ALL(x) (x).begin(),(x).end()
#define ff first
#define ss second
#define D(a) //cerr << ">> " << #a << " = >" << a << "<" << endl
#define PB push_back
#define F(i,a,b) for ( int i = (a); i < (b); ++i )
#define FD(i,a,b) for ( int i = (a); i >= (b); --i )
#define R1(a) scanf("%d",&a)
#define R2(a,b) scanf("%d%d",&a,&b)
#define R3(a,b,c) scanf("%d%d%d",&a,&b,&c)
#define DR1(a) int a; scanf("%d",&a)
#define DR2(a,b) int a,b; scanf("%d%d",&a,&b)
#define DR3(a,b,c) int a,b,c; scanf("%d%d%d",&a,&b,&c)

const int INF = 1e9+7;

const int DEBUG = 0;
const ii T = { 1, 100 };
const ii M = { 1, 100 };     // size of photo
const ii C = { -1e9, +1e9 }; // range of coordinates
const ii N = { 2, 1e6 };

bool between(int value, int lower, int upper) {
    return value >= lower && value <= upper;
}

int main( ) {
    ios::sync_with_stdio(0);
    int  t, n, x, y;
    string line;

    getline(cin, line);
    getline(cin, line);
    int toAdd = 0;
    if ( line.find_first_of("0123456789") == string::npos )
        ++toAdd;
    D(toAdd);
    if ( line.find_first_of("abcdefghijklmnopqrstuvwxyz") == string::npos )
        ++toAdd;
    D(toAdd);
    if ( line.find_first_of("ABCDEFGHIJKLMNOPQRSTUVWXYZ") == string::npos )
        ++toAdd;
    D(toAdd);
    if ( line.find_first_of("!@#$%^&*()-+") == string::npos )
        ++toAdd;
    D(toAdd);
    if (line.size() + toAdd < 6)
        toAdd = 6 - line.size();
    D(toAdd);
    cout << toAdd << endl;
    return 0;
}