AT_past202303_b 小数点第 D 位

You are given decimals $ A $ and $ B $ with $ D $ decimal places. Precisely compute $ A+B $ and print the result in the same format.

The input is given from Standard Input in the following format: > $ D $ $ A $ $ B $

Print the result as a concatenation of (the decimal part without leading zeros), `.`, and (the fractional part represented by $ D $ decimal places). **Note that your output is considered incorrect if it has an error from the true value.** Also, **leading zeros are not permitted.** For example, if the answer is $ 3.50 $ , do not print, for instance, `03.50`.

### Sample Explanation 1 $ 1.2 + 1.8 = 3 $ , so `3.0` should be printed, which contains one decimal place. Representations like `3`, `3.00`, and `003.0` are not accepted, because they violate the specified format. ### Constraints - $ 1 \leq D \leq 100 $ - $ D $ is an integer. - $ 1 \leq A \lt 100 $ - $ 1 \leq B \lt 100 $ - Each of $ A $ and $ B $ is given as a concatenation of (the decimal part without leading zeros), `.`, and (the fractional part represented by $ D $ decimal places).