human
Compute A + B.

Constraints

* -1000 ≤ A, B ≤ 1000

Input

The input will consist of a series of pairs of integers A and B separated by a space, one pair of integers per line. The input will be terminated by EOF.

Output

For each pair of input integers A and B, you must output the sum of A and B in one line.

Example

Input

1 2
10 5
100 20

Output

3
15
120
Solve the task in PYTHON3.
 Write me a Python code to compute A + B?
assistant
#Here is Python code to compute A + B.

# coding=utf-8
 
###
### for atcorder program
###
 
import sys
import math
 
# math class
class mymath:
    ### pi
    pi = 3.14159265358979323846264338
 
    ### Prime Number
    def pnum_eratosthenes(self, n):
        ptable = [0 for i in range(n+1)]
        plist = []
 
        for i in range(2, n+1):
            if ptable[i]==0:
                plist.append(i)
                for j in range(i+i, n+1, i):
                    ptable[j] = 1
        return plist
 
    ### GCD
    def gcd(self, a, b):
        if b == 0:
            return a
        return self.gcd(b, a%b)
 
    ### LCM
    def lcm(self, a, b):
        return (a*b)//self.gcd(a,b)
 
    ### Mat Multiplication
    def mul(self, A, B):
        ans = []
        for a in A:
            c = 0
            for j, row in enumerate(a):
                c += row*B[j]
            ans.append(c)
        return ans
 
mymath = mymath()
 
### output class
class output:
    ### list
    def list(self, l):
        l = list(l)
        #print(" ", end="")
        for i, num in enumerate(l):
            print(num, end="")
            if i != len(l)-1:
                print(" ", end="")
        print()
 
output = output()
 
### input sample
#i = input()
#N = int(input())
#A, B, C = [x for x in input().split()]
#N, K = [int(x) for x in input().split()]
#inlist = [int(w) for w in input().split()]
 
#R = float(input())
#A.append(list(map(int,input().split())))
 
#for line in sys.stdin.readlines():
#    x, y = [int(temp) for temp in line.split()]
 
#abc list
#abc = [chr(ord('a') + i) for i in range(26)]
 
### output sample
#print("{0} {1} {2:.5f}".format(A//B, A%B, A/B))
#print("{0:.6f} {1:.6f}".format(R*R*math.pi,R*2*math.pi))
#print(" {}".format(i), end="")  

def get_input():
  N = []
  while True:
    try:
      N.append(input())
      #N.append(int(input()))
    except EOFError:
      break
  return N

N = get_input()

for row in N:
  a, b = [int(x) for x in row.split()]
  print(a+b)