Struct and other data types in C

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

enum Color {
    RED = 4,
    BLUE,
    YELLOW
};

typedef enum Color Color;

int main(int argc, char* argv[]) {
    Color c = YELLOW;
    printf("%d\n", c);
    return 0;
}