#include <stdio.h>

int main(){
     section=A
     rollnumber=2
     bloodgroup=b
    char section;
    char rollnumber;
    char bloodgroup;
    scanf("%c",&section);
    scanf("%c",&rollnumber);
    scanf("%c",&bloodgroup);
    printf("section: %c\n",section);
    printf("rollnumber: %c\n",rollnumber);
    printf("bloodgroup: %c\n",bloodgroup);
    return 0;