#include <stdio.h>
# define EXAMS 4
# define STUDENTS 3

int maximum(const int grades[][EXAMS]);
int minimum(const int grades[][EXAMS]);

int main(void) {
	
	int studentGrades[STUDENTS][EXAMS] = {77,68,86,73, 96,87,89,78, 70,90,86,81};
	
	printf("maximum：%d\n",maximum(studentGrades));
	printf("minimum：%d\n",minimum(studentGrades));
	
	return 0;
}

int maximum(const int grades[][EXAMS]){
	
	int highscore = 0;
	int i,j;
	
	for(i = 0;i < 2;i ++){
		for(j = 0;j < 3;j ++){
			if(grades[i][j] > highscore){
				highscore = grades[i][j];
			}
		}
	}
	return highscore;
}

int minimum(const int grades[][EXAMS]){
	
	int lowscore = 100;
	int i,j;
	
	for(i = 0;i < 2;i ++){
		for(j = 0;j < 3;j ++){
			if(grades[i][j] < lowscore){
				lowscore = grades[i][j];
			}
		}
	}
	return lowscore;
}