#include <stdio.h>

union hiddenMessage {
    int  ints[6];
    char chars[21];
};

int main() {
    union hiddenMessage intCharacters = {{1853169737, 1936876900, 1684955508, 1768838432, 561213039, 0}};

    printf("[");
    // only go to 18 because 1 byte is for the terminating 0 and we don't print the last in the loop
    for(int i = 0; i < 19; ++i)
        printf("%c, ", intCharacters.chars[i]);
    printf("%c]\n", intCharacters.chars[19]);
    printf("%s\n", intCharacters.chars);
}