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

using namespace std;

int main() {
    int x{0x34};
    char y{'z'};
    string greeting{"Hello World!"};

    printf("Hello World!\n");
    printf(" x = %d\n", x);
    printf("The letter is '%c'\n",y);
    printf("The letter is '%c', the number is %d\n",y,x);
    printf("The letter is '%7c', the number is %#x\n",x,x);

    printf("%s\n", greeting.c_str());

    return 0;
}