Resistor Calculator - C - Complete n00b

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
int iFirstKeyCode,iSecondKeyCode;
int iFlag = 1;
int iVal;

printf("This program determines the closest 10% PV to a resistance value entered by the user\n");

printf("Enter an integer value for resistance in ohms");
scanf("%d",&iVal);

printf("Press Up Arrow key to indicate GREATER THAN or Down Arrow key to indicate LESS THAN:\n");


while(iFlag ==1)
{
printf("PV should be greater than or less than %d?",iVal);
if(kbhit())
{

iFirstKeyCode = getch();
if(iFirstKeyCode == 224)
{
iSecondKeyCode = getch();
if (iSecondKeyCode == 72 || iSecondKeyCode == 80)
{
iFlag = 0;
}
}
}// end if
} // end while



system("PAUSE");
return 0;
} // end main