#include <iostream>
using namespace std;
int main()
{
	float sum;
	int st =3, sub = 3;
	float score[st][sub + 2] =
	{{86, 92, 57, 81, 65}, {96, 98, 81, 67, 74},
	{91, 40, 92, 78, 67}};
	int r, c;
 
	for (r = 0; r < st; r++){
		sum = 0;
		for (c = 0; c < sub; c++)
		    sum = sum + score[r][c];
		score[r][sub] =sum;
		score[r][sub + 1] =sum /sub;
	}
 
	cout << "座號\t國文\t英文\t數學\t自然\t社會\t總分\t平均"<<endl;
	for (r = 0; r < st; r++){
		cout << r + 1 << "\t";
		for (c = 0; c < sub + 2; c++)
		    cout << score[r][c] << "\t";
	    cout << endl;
	}
 
	return 0;
}

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