# Read the first line of input:
f = open('addin.txt', 'r')
line = f.readline()
f.close()

# Split the input into two numbers:
pieces = line.split(' ')

# Add the two numbers:
answer = int(pieces[0]) + int(pieces[1])

# Write the answer to the output file:
f = open('addout.txt', 'w')
f.write(str(answer) + '\n')
f.close()