Go: package main

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

func main() {
	stdin := bufio.NewScanner(os.Stdin)
	for stdin.Scan() {
		n, _ := strconv.Atoi(stdin.Text())
		if n == 0 {
			break
		}

		a := make([][]int, n+1)
		for i := 0; i < n; i++ {
			sum := 0
			stdin.Scan()
			a[i] = make([]int, n+1)
			str := strings.Split(stdin.Text(), " ")
			for j := 0; j < n; j++ {
				a[i][j], _ = strconv.Atoi(str[j])
				sum += a[i][j]
				fmt.Printf("%5d", a[i][j])
			}
			a[i][n] = sum
			fmt.Printf("%5d\n", a[i][n])
		}
		a[n] = make([]int, n+1)
		for i := 0; i <= n; i++ {
			sum := 0
			for j := 0; j < n; j++ {
				sum += a[j][i]
			}
			a[n][i] = sum
			fmt.Printf("%5d", a[n][i])
		}
		fmt.Println()
	}
}

C++: #include <iostream>

using namespace std;

int main() {
    for (;;) {
    int n;
    cin >> n;
    if (n == 0) return 0;

    int matrix[n+1][n+1];

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cin >> matrix[i][j];
        }
    }

    for (int i = 0; i < n+1; i++) {
        matrix[n][i] = 0;
        matrix[i][n] = 0;
    }
    
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            matrix[i][n] += matrix[i][j];
        }
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            matrix[n][j] += matrix[i][j];
        }
    }

    matrix[n][n] = 0;
    for (int i = 0; i < n; i++) {
        matrix[n][n] += matrix[n][i];
    }
    
    for (int i = 0; i < n+1; i++) {
        for (int j = 0; j < n+1; j++) {
            cout.width(5);
            if (j == n) 
                cout << matrix[i][j];
            else 
                cout << matrix[i][j] << ' ';
        }
        cout << endl;
    }
    }

    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  while(1){ 
    cin>>n;
    if(!n)break;
    int data[12][12]={0};
    for(int i=0;i<n;i++){
      for(int j=0;j<n;j++){
	cin>>data[i][j];
	data[n][j]+=data[i][j];
	data[i][n]+=data[i][j];
      }
      data[n][n]+=data[i][n];
    }
    for(int i=0;i<=n;i++){
      for(int j=0;j<=n;j++){
	printf("%5d",data[i][j]);
      }
      printf("\n");
    }
  }
}

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

int main() {
    while (true) {
        int n;
        cin >> n;
        if (n == 0) {
            break;
        }
        int table[11][11] = {};
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                cin >> table[i][j];
            }
        }
        for (int i = 0; i < n; i++) {
            int sum = 0;
            for (int j = 0; j < n; j++) {
                sum += table[i][j];
            }
            table[i][n] = sum;
        }
        for (int i = 0; i <= n; i++) {
            int sum = 0;
            for (int j = 0; j < n; j++) {
                sum += table[j][i];
            }
            table[n][i] = sum;
        }
        for (int i = 0; i <= n; i++) {
            for (int j = 0; j <= n; j++) {
                printf("%5d",table[i][j]);
            }
            printf("\n");
        }
    }
}

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

int main(){

  int tab[11][11], n, low[11], colume[11], sum;

  while(cin >> n){
    if(n == 0) break;
    fill(low, low+11, 0);
    fill(colume, colume+11, 0);
    
    for(int i=0; i<=n; i++){
      sum = 0;
      if(i != n){
        for(int j=0; j<n; j++){
          cin >> tab[i][j];
          sum += tab[i][j];
          low[j] += tab[i][j];
        }
      }
      else{
        for(int j=0; j<n; j++){
          tab[i][j] = low[j];
          sum += low[j];
        }
      }

      tab[i][n] = sum;

    }
    
    for(int i=0; i<=n; i++){
      for(int j=0; j<=n; j++){
        printf("%5d", tab[i][j]);
        if(j != n) cout << " ";
      }
      cout << endl;
    }
    
  }

  return 0;

}

C++: #include<stdio.h>
#include<iostream>
#include<math.h>
using namespace std;

int main(){
int N,num[11][11]={},x;
int a;
while(1)
{cin>>N;
if(N==0)break;
for(int i=0;i<N;i++){
for(int j=0;j<N;j++)
{cin>>num[i][j];num[i][N]+=num[i][j];}
}
for(int i=0;i<N;i++)
num[N][N]+=num[i][N];
for(int i=0;i<N;i++)
	for(int j=0;j<N;j++)
num[N][i]+=num[j][i];

for(int i=0;i<=N;i++){
for(int j=0;j<=N;j++)
{
if(num[i][j]==0)a==4;
else	a =5-( (int)log10((double)(num[i][j]) )+ 1);
for(int k=0;k<a;k++)
{cout<<" ";}
cout<<num[i][j];}
cout<<endl;


}

for(int i=0;i<=N;i++){
for(int j=0;j<=N;j++){
num[i][j]=0;
}
}


}

return 0;
}

C++: #include<stdio.h>
#include<iostream>
#include<math.h>
using namespace std;

int main(){
int N,num[11][11]={},x;
int a;
while(1)
{cin>>N;
if(N==0)break;
for(int i=0;i<N;i++){
for(int j=0;j<N;j++)
{cin>>num[i][j];num[i][N]+=num[i][j];}
}
for(int i=0;i<N;i++)
num[N][N]+=num[i][N];
for(int i=0;i<N;i++)
	for(int j=0;j<N;j++)
num[N][i]+=num[j][i];

for(int i=0;i<=N;i++){
for(int j=0;j<=N;j++)
{
a =5-( (int)log10((double)(num[i][j]) )+ 1);
for(int k=0;k<a;k++)
{cout<<" ";}
cout<<num[i][j];}
cout<<endl;


}

for(int i=0;i<=10;i++){
for(int j=0;j<=10;j++){
num[i][j]=0;
}
}


}

return 0;
}

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

int main(){
	int n;
	while(1){
		cin>>n;
		if(n==0)break;
		int dt[n+1][n+1];
		for(int i=0;i<n;i++){
			for(int j=0;j<n;j++){
				cin>>dt[i][j];
			}
		}
		for(int x=0;x<n+1;x++){
			dt[x][n]=0;
		}
		for(int y=0;y<n;y++){
			dt[n][y]=0;
		}
		for(int k=0;k<n;k++){
			for(int l=0;l<n;l++){
				dt[k][n]+=dt[k][l];
			}
		}
		for(int x=0;x<=n;x++){
			for(int y=0;y<n;y++){
				dt[n][x]+=dt[y][x];
			}
		}
		for(int a=0;a<=n;a++){
			for(int b=0;b<=n;b++){
				if(dt[a][b]/10==0)cout<<"    "<<dt[a][b];
				else if(dt[a][b]/100==0)cout<<"   "<<dt[a][b];
				else if(dt[a][b]/1000==0)cout<<"  "<<dt[a][b];
				else if(dt[a][b]/10000==0)cout<<" "<<dt[a][b];
				else if(dt[a][b]/100000==0)cout<<dt[a][b];
			}
			cout<<endl;
		}
	}
	return 0;
}

C++: #include<stdio.h>
#include<string.h>
#include<math.h>
int main(void)
{
	int a,s[100][100],d,f,g,h,i,j;
	while(1){
		scanf("%d",&a);
		if(a==0)	break;
		for(i=0;i<a;i++){
			for(j=0;j<a;j++){
				s[i][a]=0;
				s[a][i]=0;
				scanf("%d",&s[i][j]);
			}
		}
		s[a][a]=0;
		for(i=0;i<a;i++){
			for(j=0;j<a;j++){
				s[i][a]+=s[i][j];
				s[a][i]+=s[j][i];
			}
			s[a][a]+=s[i][a];
		}
		for(i=0;i<=a;i++){
			for(j=0;j<=a;j++){
				printf("%5d",s[i][j]);
	//			if(j!=a)	printf(" ");	
			}
			printf("\n");
		}
	}
	return 0;
}

C++: #include<bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
typedef long long ll;
int main(){
    int n;
    while(cin >> n){
        if(!n) break;

        int table[n+1][n+1];
        rep(i,n+1) table[i][n] = 0, table[n][i] = 0;

        rep(i,n)rep(j,n){
            cin >> table[i][j];
            table[i][n] += table[i][j];
            table[n][j] += table[i][j];
        }
        rep(i,n) table[n][n] += table[i][n];

        rep(i,n+1){
            rep(j,n){
                printf("%5d",table[i][j]);
            }
            printf("%5d\n",table[i][n]);
        }
    }

    return 0;
}

C++: #include<iostream>
#include<cstdio>

using namespace std;

int main()
{
	int n;
	int i,j;
	for(;;)
	{
		cin >> n ;
		if(n==0)
			break;
		int table[12][12]={0};
		
		for(i=0;i<n;i++)
		{
			for(j=0;j<n;j++)
			{
				cin >> table[i][j] ;
			}
		}
		
		for(i=0;i<=n;i++)
		{
			for(j=0;j<=n;j++)
			{
				if(j!=n)
				{
					printf("%4d ",table[i][j]);
					table[i][n]+=table[i][j];
					table[n][j]+=table[i][j];
				}
				else
					printf("%4d",table[i][j]);
			}
			cout << endl;
		}
	}
}

C++: #include <iostream>
#include <cstdio>
using namespace std;
#define rep(i,n) for(int i = 0; i < n; i++)

int n, m;
int t[13][13];
int main(){
  while(cin >> n, n){
    rep(i,13)rep(j,13)t[i][j]=0;
    rep(i,n)rep(j,n){
      cin >> m;
      t[i][j] = m;
      t[n][j] += m;
      t[i][n] += m;
      t[n][n] += m;
    }
    rep(i,n+1){
      rep(j,n+1){
	printf("%5d",t[i][j]);
      }
      cout << endl;
    }
  }
  return 0;
}