#include<stdio.h>
#include<stdlib.h>
int main() {
	int x=12345;
	//scanf("%d", &x);
	int digit;
	int ret = 0;
	while (x>0) {
		digit = x % 10;
		//printf("%d", digit);
		ret = ret * 10 + digit;
		printf("x = %d,digit = %d,ret = %d\n", x,digit,ret);
		x /= 10;
	}
	printf("%d", ret);
	system("pause");
	return 0;
}