Go: package main

import (
	"bufio"
	"fmt"
		"os"
	"strconv"
	"strings"
	)

var scanner = bufio.NewScanner(os.Stdin)

func main() {
	table := [10]string{
		"* = ****",
		"* =* ***",
		"* =** **",
		"* =*** *",
		"* =**** ",
		" *= ****",
		" *=* ***",
		" *=** **",
		" *=*** *",
		" *=**** ",
	}
	for scanner.Scan() {
		tmp := strings.Split(fmt.Sprintf("%05s", scanner.Text()), "")
		ans := make([]string, 0)
		for _, v := range tmp {
			iv, _ := strconv.Atoi(v)
			ans = append(ans, table[iv])
		}
		for i := 0; i < 8; i++ {
			for j := 0; j < 5; j++ {
				fmt.Print(string(ans[j][i]))
			}
			fmt.Println()
		}
	}
}

C++: #define _USE_MATH_DEFINES
#include <iostream>
#include <complex>
#include <algorithm>
#include <vector>
#include <stack>
#include <string>
#include <queue>
#include <cmath>
#include <math.h>
#include <numeric>
#include <list>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <climits>
#include <set>
#include <memory.h>
#include <memory>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cassert>
#include <map>
#include <cassert>
#include <time.h>

using namespace std;

typedef complex<double> xy_t;
typedef long long ll;
typedef pair<int, int> P;
typedef pair<int , P> PP;
typedef pair<int, string> Ps;
typedef vector<int> vec;
typedef vector<vec> mat;
const int INF= 1 << 30;
const double EPS = 1e-9;
const double PI = 3.1415926535897932384626433832795;

#define rep(i, n) for(int i = 0; i < n; i++)

string aba[] = {
	"* = ****",
	"* =* ***",
	"* =** **",
	"* =*** *",
	"* =**** ",
	" *= ****",
	" *=* ***",
	" *=** **",
	" *=*** *",
	" *=**** ",
};

int main(){
	int n;
	int cnt = 0;
	while(cin >> n){
		if(cnt == 0) cnt++;
		else cout << endl;
		int num = 1;
		string res[5];
		rep(i, 5){
			res[i] = aba[(n % (num * 10)) / num];
			num *= 10;
		}
		rep(i, 8){
			rep(j, 5){
				cout << res[4-j][i];
			}
			cout << endl;
		}
	}
	return 0;
}

C++: #include <iostream>
#include <fstream>
#include <sstream>
#include <iomanip>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <deque>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <bitset>
#include <functional>
#include <utility>
#include <algorithm>
#include <numeric>
#include <typeinfo>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <climits>
#include <ctime>

using namespace std;

#define dump(n) cout<<"# "<<#n<<"="<<(n)<<endl
#define debug(n) cout<<__FILE__<<","<<__LINE__<<": #"<<#n<<"="<<(n)<<endl
#define repi(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,n) repi(i,0,n)
#define iter(c) __typeof((c).begin())
#define foreach(i,c) for(iter(c) i=(c).begin();i!=(c).end();i++)
#define allof(c) (c).begin(),(c).end()
#define mp make_pair

typedef unsigned int uint;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<string> vs;
typedef pair<int,int> pii;

int main()
{
	string table[8]={
		"*****     ",
		"     *****",
		"==========",
		" **** ****",
		"* **** ***",
		"** **** **",
		"*** **** *",
		"**** **** ",
	};
	
	bool first=true;
	for(string s;cin>>s;){
		if(first) first=false;
		else cout<<endl;
		
		s=string(5-s.size(),'0')+s;
		rep(i,8){
			rep(j,5)
				cout<<table[i][s[j]-'0'];
			cout<<endl;
		}
	}
	
	return 0;
}

C++: #include <vector>
#include <algorithm>
#include <iostream>
#include <functional>
#include <string>

using namespace std;

int main() {
    int n = 0;
    int N[5] = {0};
    cin >> n;
    cout << "\n";
    
    N[0] = n / 10000;
    n %= 10000;
    N[1] = n / 1000;
    n %= 1000;
    N[2] = n / 100;
    n %= 100;
    N[3] = n / 10;
    n %= 10;
    N[4] = n;
    
        for(int i = 0; i < 8; i++) {
            for (int j = 0; j < 5; j++) {
                if(i == 0) {
                    if (N[j] < 5) cout << "*";
                    else cout << " ";
                }
                if(i == 1) {
                    if (N[j] < 5) cout << " ";
                    else cout << "*";
                }

                if(i == 2) cout << "=";

                if(i == 3) {
                    if (N[j] > 4) N[j] -= 5;
                    if (N[j] != 0) cout << "*";
                    else cout << " ";
                }

                if(i == 4) {
                    if (N[j] != 1) cout << "*";
                    else cout << " ";
                }

                if(i == 5) {
                    if (N[j] != 2) cout << "*";
                    else cout << " ";
                }
                if(i == 6) {
                    if (N[j] != 3) cout << "*";
                    else cout << " ";
                }
                if(i == 7) {
                    if (N[j] != 4) cout << "*";
                    else cout << " ";
                }

                if (j == 4) cout << "\n";
            }
        }
    return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define all(c) (c).begin(),(c).end()
#define rep(i,n) for(int i=0; i<(int)(n); i++)
#define rrep(i,n) for(int i=(int)(n)-1; i>=0; i--)
#define REP(i,m,n) for(int i=(int)(m); i<(int)(n); i++)
#define iter(c) __typeof((c).begin())
#define tr(it,c) for(iter(c) it=(c).begin(); it!=(c).end(); it++)
#define pb(a) push_back(a)
#define pr(a) cout << (a) << endl
#define PR(a,b) cout << (a) << " " << (b) << endl
#define F first
#define S second
typedef long long ll;
typedef pair<int,int> P;
const int MAX=1000000001;
const ll MAXL=1000000000000000001LL;
const ll mod=1000000007;
int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};

int main() {
  string s;
  bool ck=false;
  while(cin >> s) {
    if(ck) cout << endl;
    ck=true;
    char t[8][5];
    rep(i,8) {
      if(i==2) fill(t[i],t[i]+5,'=');
      else fill(t[i],t[i]+5,'*');
    }
    rep(i,5) {
      if(i>=5-s.size()) {
	int d=(int)s[i+s.size()-5]-'0';
	t[(d/5==0)?1:0][i]=' ';
	t[d%5+3][i]=' ';
      } else {
	t[1][i]=' ';
	t[3][i]=' ';
      }
    }
    rep(i,8) {
      rep(j,5) cout << t[i][j];
      cout << endl;
    }
  }
  return 0;
}

C++: #include<iostream>
#include<string>
#include<cstring>
using namespace std;

int main(void){
	string str;
	char aba[9][9];
	while(cin >> str){
		string str2;
		for(int i=str.size();i<5;i++){
			str2+="0";
		}
		str2+=str;
		memset(aba,'\0',sizeof(aba));
		for(int i=0;i<str2.size();i++){
			if(str2[i]<'5')aba[i][0]='*',aba[i][1]=' ';
			else aba[i][0]=' ',aba[i][1]='*';
			aba[i][2]='=';
			for(int j=3;j<8;j++){
				if(j-3==(str2[i]-'0')%5)aba[i][j]=' ';
				else aba[i][j]='*';
			}
		}
		for(int i=0;i<8;i++){
			for(int j=0;j<str2.size();j++){
				printf("%c",aba[j][i]);
			}
			printf("\n");
		}
		printf("\n");
	}
    return 0;
}

C++: #include <iostream>
#include <cstdio>
using namespace std;

int main()
{
	char abacus[8][10] = {
		"*****     ",
		"     *****",
		"==========",
		" **** ****",
		"* **** ***",
		"** **** **",
		"*** **** *",
		"**** **** ",
	};
	
	int n;
	while (scanf("%d", &n) != EOF){
		int num[5];
		char a[8][5];
		for (int i = 0; i < 5; i++){
			num[4 - i] = n % 10;
			n /= 10;
		}
		for (int i = 0; i < 8; i++){
			for (int j = 0; j < 5; j++){
				a[i][j] = abacus[i][num[j]];
			}
		}
		for (int i = 0; i < 8; i++){
			for (int j = 0; j < 5; j++){
				cout << a[i][j];
			}
			cout << endl;
		}
		cout << endl;
	}
	
	return (0);
}