i m new in c language. i write the following code. its not giving the correct input. when i enter the marks it always give ouput "F" .please correct the code
#include <stdio.h>
void main()
{
int marks;
float percentage;
printf("enter marks:");
scanf("%d",&marks);
percentage=(marks/1100)*100;
if (percentage>80)
printf(" A+ ");
if(percentage >=70 && percentage<80)
printf(" A");
if(percentage >=60 && percentage<70)
printf(" B");
if(percentage >=50 && percentage<60)
printf(" C");
if(percentage >=40 && percentage<50)
printf(" D");
if(percentage >=33 && percentage<40)
printf(" E");
if(percentage<33);
printf(" F");
}