Data record system in a school

//program to check the validity of data recorded for the students at a college
#include<stdio.h>	
void main()
{
    int id,error=0; //id-student id number
    char type; //type-course type as part time (P) or full time(F)
    float fee,avg_mark; //fee-fees paid for the tution, average marks-average mark of the student
     
    
  printf("Enter the Id, Type, Average marks and Fee : \n");
  scanf("%d,%c,%f,%f",&id,&type,&avg_mark,&fee);
  
      
        while(id>0)
          { 
            if(id<1000 || id>9999) //id number should be between 1000 and 9999 inclusive
                error++;
                
            if(type!='P' && type!='F') //course type should be “P” or “F”
                error++;
                
            if(avg_mark<0 ||avg_mark>100) //average marks must be between 0 and 100 inclusive
                error++;
                
            if(type=='P') 
                {   
                    if(fee>200000) //fees paid for part-time should not exceed Rs.200000
                        error++;
                }
            else    
                    if(type=='F') //fees 
                        { 
                             if(fee>500000) //fees paid for fulltime should not exceed Rs.500000
                                 error++;
                        }
                
              
                printf("%d errors\n",error);
                error=0;
                printf("Enter the Id, Type, Average Marks and Fee : \n");
                scanf("%d, %c, %f, %f",&id,&type,&avg_mark,&fee);
               
          }           
                    
}