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#include <stdio.h>
int main()
{
printf("Hello World \n");
char message[] = "12345678";
int result;
result = message[3] * 100;
printf("%d \n", result);
printf("%c \n", message[3]);
printf("%d \n", message[3]);
result = (int)(message[3]);
printf("%d \n", message[3]);
return 0;
}