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10. Number and Digit

You are given a number and a digit. Write a program that adds the digit to the end of the number.


Input

The first line contains a natural number n(1n109).

The second line contains a digit d(0d<10).

Output

The solution of the problem in a single line.


Sample input 1

123
4

Sample output 1

1234

Sample input 2

5
0

Sample output 2

50

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