BLOOD GROUP

#include<stdio.h>
int main()
{
char blood;
printf("blood group=");
scanf(" %c",&blood);
if(blood=='A'||blood=='B'||blood=='C'||blood=='O')
{
char B;
printf("Is it Negative or Positive");
scanf(" %c",&B);
if(B=='+')
{
printf("%c is positive",blood);

}
else if(B=='-')
{
printf("%c is negative",blood);

}
else
{
printf("beshi pakna");
}
}
else
{
printf("danger,run!");
}
return 0;
}