#include<stdio.h>
#include<conio.h>
void so(int a);
void main()
{
clrscr();
int a;
char thoat='n';
while(thoat!='y')
{
clrscr();
printf("nhap bang cuu chuong can tim:");
scanf("%d",&a);
so(a);
printf("ban co muon thoat khong? (y/n)");
thoat=getch();
}
}
void so(int a)
{
int i;
for (i=1;i<=10;i++)
printf("%d*%d=%d\n",a,i,a*i);
}