To represent a decimal number clearly and formally, one must insert commas (,) for the thousands separators, and a period (.) to separate the integer part from the fractional part.
For example, the standard format of number "123456789.012" should be represented as "123,456,789.012".
Now you have 2 such numbers in standard format, and you want to calculate the summation of them.
There are 2 lines in each case, and each line contains a number T in the standard format, where 1,000,000.000 ≤ T ≤ 499,999,999.000 with fractional part.
For each case, you should output one line that contains the summation of the input numbers, which is a floating number with three digits after the decimal point but without any commas.
Note that there is no need to add '\n' at the end of output