#include<stdio.h>
#include<stdlib.h>

int proposeInt() {
	printf("Veuillez donner un entier : ");
}

int checkResult(int result) {
	if (result == 0) {
		printf("Format Incorrect.\n");
		return 0;
	}

	return 1;
}

int main(int argc, char * argv[]) {
	int max, min;
	printf("%d", &max);

	proposeInt();
	int result1 = scanf("%d", &max);
	if (!checkResult(result1)) return EXIT_FAILURE;
	
	proposeInt();
	int result2 = scanf("%d", &min);
	if (!checkResult(result2)) return EXIT_FAILURE;

	max = max>min ? max : min;
	
	proposeInt();
	int result3 = scanf("%d", &min);
	if (!checkResult(result3)) return EXIT_FAILURE;

	max = max>min ? max : min;

	printf("Le maximum de ces trois valeurs est %d.\n", max);

	return EXIT_SUCCESS;
}