# 讀取多行輸入，直到空行結束
import sys

for line in sys.stdin:
    line = line.strip()
    if not line:  # 空行就停止
        break

    # 拆分運算式
    num1_str, operator, num2_str = line.split()
    num1 = int(num1_str)
    num2 = int(num2_str)

    # 計算結果
    if operator == '+':
        result = num1 + num2
    elif operator == '-':
        result = num1 - num2
    elif operator == '*':
        result = num1 * num2
    elif operator == '/':
        result = num1 // num2  # 整數除法
    else:
        raise ValueError("不支援的運算符")

    # 輸出結果
    print(result)