# import sys

# for line in sys.stdin:
#     a = line.split()
#     print(int(a[0]) + int(a[1]))
# def printfunction(a):
#     a=int (input("please input anumber:"))
#     print(a)
# printfunction()
def printfunction():
    a = int(input(""))
    print(a)


printfunction()  # 直接调用，不需要参数