void print()
{
int max=100,min=999;
int i,j,k;
int temp=0;
for(i=1;i<=9;i++)
for(j=0;j<=9;j++)
for(k=0;k<=9;k++)
{
temp=i*100+j*10+k;
if(temp>max&&(i!=j&&j!=k&&k!=i))
max=temp;
if(temp<min&&(i!=j&&j!=k&&k!=i))
min=temp;
}
printf("the max is %d\n",max);
printf("the min is %d\n",min);
}