#include <stdio.h>
#define STUDENTS 3
#define EXAM 4
int minimum( const int (*grades)[EXAM] );
int main(void) {
	printf("min\n");
	int grades[STUDENTS][EXAM]={{77,68,86,73},{96,87,89,78},{70,90,86,81}};
	printf("%d",minimum(grades));
	return 0;
}
int minimum( const int (*grades)[EXAM] ){
	int min=100;
	for(int i=0;i<STUDENTS;i++){
		for(int j=0;j<EXAM;j++){
			if(grades[i][j]<min){
				min=grades[i][j];
			}
		}
	}
	return min;
}