How to use increment decrement in c language

#include<stdio.h>
int main()
{
    int x=8;
    printf("x=%d\t",x);
    printf("x=%d\t",++x);
    printf("x=%d\t",x);
    printf("x=%d\t",--x);
    printf("x=%d\n",x);
    return 0;
}