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Close command line

I am new to C. I typed the following code in Visual Studio Express Dekstop 2014, but the result is forcibly closed on the command line. I tried to add getchar();not once, but twice, but three times, but nothing changes. I also tried changing the settings in Project -> Properties -> Linker -> System -> Sub System -> Console (/ SUBSYSTEM: CONSOLE), but now the output is displayed in "no debug mode", but in "debug mode", still the output closes on the command line . I also tried using system("pause");before expression return 0;. The only way that the command line does not close is to use the breakpoint in the statement return 0;by pressing F9. What should I do in this situation?

#include <string.h> // for strlen() prototype
#define DENSITY 62.4 // human density in lbs per cu ft
int main()
{
    float weight, volume;
    int size, letters;
    char name[40]; // name is an array of 40 chars
    printf("Hi! What your first name?\n");
    scanf_s("%s", name);
    printf("%s, what your weight in pounds?\n", name);
    scanf_s("%f", &weight);
    size = sizeof name;
    letters = strlen(name);
    volume = weight / DENSITY;
    printf("Well, %s, your volume is %2.2f cubic feet.\n",
        name, volume);
    printf("Also, your first name has %d letters,\n",
        letters);
    printf("and we have %d bytes to store it.\n", size);

    getchar();
    getchar();

    return 0;
}
+4
2

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+4

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