def sum(numbers):
    total = 0
    for x in numbers:
        total += int(x)
    return total


input_string = input()
list = input_string.split()
print(sum(list))

529c48d312eaaf957550403e8f821107442fd60c
<mask token>

def sum(numbers):
    total = 0
    for x in numbers:
        total += int(x)
    return total


<mask token>

def sum(numbers):
    total = 0
    for x in numbers:
        total += int(x)
    return total


<mask token>
print(sum(list))

def sum(numbers):
    total = 0
    for x in numbers:
        total += int(x)
    return total


input_string = input()
list = input_string.split()
print(sum(list))
