/*
#include <stdio.h>
int main()
{
int i,j,a,b;
scanf("%d %d",&a,&b);
for (i=1; i<=a; i++){
for (j=1; j<=b; j++){
printf("%d %d\n",i,j);
}
}
}
*/
/*
#include <stdio.h>
int main()
{
int a,i;
scanf("%X",&a);
for (i=1; i<16; i++){
printf("%X*%X=%X\n",a,i,a*i);
}
}
*/
/*
#include <stdio.h>
int main()
{
int i,j,a,b,c;
scanf("%d %d %d",&a,&b,&c);
for (i=1; i<=a*b*c; i++){
if (a<b<c){
}
}
}
*/
/*
#include <stdio.h>
int main ()
{
int a,b,i,j;
scanf("%d %d",&a,&b);
for (i=a; i<=b; i++){
for (j=1; j<=9; j++){
printf("%d*%d=%d\n",i,j,i*j);
}
}
}
*/
/*
#include <stdio.h>
int main()
{
double a,b,c,n,d,i;
scanf("%lf %lf %lf %lf",&a,&b,&c,&n);
for (i=2; i<=n; i++){
}
printf("%.0lf",);
}
*/