#include <stdio.h>
int main()
{
int mark;
printf("Enter your mark: (1-100) ");
scanf("%d",&mark);
if (mark>=75)
printf("A");
else if(mark>=65)
printf("B");
else if(mark>=55)
printf("C");
else if(mark>=35)
printf("S");
else
printf("F");
return 0;
}
int main()
{
int n, i = 3, count, c;
printf("Enter the number of prime numbers required\n");
scanf("%d",&n);
if ( n >= 1 )
{
printf("First %d prime numbers are :\n",n);
printf("2\n");
}
for ( count = 2 ; count <= n ; )
{
for ( c = 2 ; c <= i - 1 ; c++ )
{
if ( i%c == 0 )
break;
}
if ( c == i )
{
printf("%d\n",i);
count++;
}
i++;
}
return 0;
}
