#include <stdio.h>

int main(void) {
	// your code goes here
    int a=1537,b,c,d,f,sum;
    b=a/1000;
    printf("千位数是%d\n",b);
    c=a%10;
    printf("个位数是%d\n",c);
    f=(a-b*1000)/100;
    printf("百位数是%d\n",f);
    d=(a-b*1000-f*100)/10;
    printf("十位数是%d\n",d);
    sum=b+f+d+c;
    printf("sum=%d\n",sum);
   
	return 0;
}