다음 C 프로그램의 실행 결과를 쓰시오.

#include <stdio.h>
#include <ctype.h>

int main(void) {
    char text[] = "It is 8";
    for (int i = 0; text[i] != '\0'; i++) {
        if (isupper((unsigned char)text[i]))
            text[i] = (char)('A' + (text[i] - 'A' + 5) % 26);
        else if (islower((unsigned char)text[i]))
            text[i] = (char)('a' + (text[i] - 'a' + 10) % 26);
        else if (isdigit((unsigned char)text[i]))
            text[i] = (char)('0' + (text[i] - '0' + 3) % 10);
    }
    printf("%s", text);
    return 0;
}