#include<stdio.h>
int main()
{
    char section;
    char rollnumber;
    char bloodgroup;
    printf("enter your section(A-Z):");
    scanf("%C",&section);
    printf("enter your number:");
    scanf("%d\n",&i);
    printf("enter your bloodgroup initial(A,B,0):");
    scanf("%c",&bloodgr)
    retun 0;
}