input x
if (0<=x and x<49)
output"You fail."
else if(50<= x and x <70)
output"Your grade is"x
output"You did ok."
else if(70 <=x and x <85)
output"Your grade is"x
output"You did well."
else if(85 <= x and x <100)
output "Your grade is"x
output"You did great."
endif
output"How did you do?"