SwapNumberWithoutUsing3rdVariable.c

#include<stdio.h>
int main(void){
	int x1 = 0;
	int x2 = 0;
	printf("please enter the first number:\n");
	scanf("%d", &x1);
	printf("please enter the second number:\n");
	scanf("%d", &x2);
	printf("The numbers before swapping are x1 = %d x2 = %d", x1, x2);
	x1 = x1 + x2;
	x2 = x1 - x2;
	x1 = x1 - x2;
	printf("Swaped Number are:%d %d", x1, x2);
	return 0;
}

Edit the printed statement to enter only one variable at a time