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A+B for Input-Output Practice (VII)

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 133636    Accepted Submission(s): 86978


Problem Description
Your task is to Calculate a + b.
 

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.
 

Output
For each pair of input integers a and b you should output the sum of a and b, and followed by a blank line.
 

Sample Input
1 5 10 20
 

Sample Output
6 30
 

Author
lcy
 

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