#Write a program that reads 10 positive three digit numbers and prints the 
#last digits of all these numbers. You may assume that input consists of 10 
#positive integers between 100 and 999.


#Discussion: counter-controlled repetition

def main():

	counter=0
	while(counter<10):
		num=int(input("enter three-digit number "))
		if(num>=100 and num<=999):
			print(num%10)
		else:
			print("not valid number")

		counter=counter+1
main()