#include <stdio.h>
int main()
{
	float gradePerc;

	printf("Enter Your Grade\n");
	 scanf("%d", &gradePerc);

	if (gradePerc>90)
	{
		printf("\nThe corresponding grade letter is A");
	}
	else if (gradePerc<=89)
	{
		printf("\nThe corresponding grade letter is B");
	}
		else if (gradePerc<=79)
	{
		printf("\nThe corresponding grade letter is C");
	}
		else if (gradePerc<=69)
	{
		printf("\nThe corresponding grade letter is D");
	}
			else
	{
		printf("\nThe corresponding grade letter is E");
	}
}