Write a program which reads two integers a, b and an operator op, and then prints the value of a op b.  The operator op is '+', '-', '*' or '/' (sum, difference, product or quotient). The division should truncate any fractional part.
while True:
	try:
		line = input()
		if line == '0 ? 0':
			break	
		else:
			a,op,b = line.split(' ')
			if op == '+':
				print(int(a)+int(b))
			if op == '-':
				print(int(a)-int(b))
			if op == '*':
				print(int(a)*int(b))
			if op == '/':
				print(float(a)/float(b))
	except EOFError:
		break

while True:
	try:
		line = input()
		if  '?' in line:
			break	
		else:
			a,op,b = line.split(' ')
			if op == '+':
				print(int(a)+int(b))
			if op == '-':
				print(int(a)-int(b))
			if op == '*':
				print(int(a)*int(b))
			if op == '/':
				print(int(float(a)/float(b)))
	except EOFError:
		break

