main()
{
int a,b;
printf("Please input data a,b");
scanf("%d%d",&a,&b);
printf("\na+b=%d",a+b);
printf("\na-b=%d",a-b);
printf("\na*b=%d",a*b);
printf("\na/b=%d",a/b);
printf("\na%b=%d",a%b);
getch();
}