PAT 1001

#include<cstdio>#include<algorithm>#include<stdlib.h>#include<cstring>#include<math.h>int main(){	int  a,b,c,d[3]={};	scanf("%d%d",&a,&b);	c=a+b;	int i=0;	if(c<0)	{		PRintf("-");		c=-c;	}	do	{		d[i]=c%1000;		c/=1000;		i++;	}while(c!=0);		if(d[2]!=0)		{			printf("%d",d[2]);			printf(",");			printf("%03d",d[1]);			printf(",");			printf("%03d",d[0]);		}	else if(d[1]!=0)	{		printf("%d",d[1]);		printf(",");		printf("%03d",d[0]);	}	else 	{		printf("%d",d[0]);	}	system("pause");	return 0;}