#include <stdio.h>

int main (void) {

	printf("Enter 4 chars, and hit 'Enter' please...\n\n");
	for (int i = 0; i < 4; i++) {
		char some_char;
		some_char = (char) _fgetchar();

		printf("%d\n", some_char);
	}

	return 0;
}

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

int main (void) {

	printf("Enter 3 digits between 0 and 255...\n\n");

	char some_char[4] = {0};

	fscanf(stdin, "%s", some_char);

	char result = atoi(some_char);

	printf("%c\n", result);

	return 0;
}

#include <stdio.h>

int main (void) {

	printf("Enter 4 chars, and hit 'Enter' please...\n\n");
	for (int i = 0; i < 4; i++) {
		char some_char;
		some_char = (char) _fgetchar();
		some_char++;

		printf("%c", some_char);
	}

	return 0;
}