#include<stdio.h>
int main()
{
 char section;
 int roll no;
 char blood group;
 scanf ("%c",&section);
 scanf ("%d",&roll no);
 scanf ("%c",&blood group);
printf ("section:%d\n",a);
printf ("roll no:%d\n",b);
printf ("bg:%d\n",c);
return 0;
}