A number with 30 decimal digits of precision can be represented by a structure type as shown in the examples below. It includes a 30-element integer array (digits), a single integer (decpt) to represent the position of the decimal point and an integer (or character) to represent the sign (+/-). For example, the value -218.302869584 might be stored as The value 0.0000123456789 might be represented as follows. Your task is to write a program to calculate the sum of high-precision numbers. Input The first line contains a positive integer n (1 ≤ n ≤ 100) indicating the number of groups of high- precision numbers (maximum 30 significant digits). Each group includes high-precision numbers (one number in a line) and a line with only 0 indicating the end of each group. A group can contain 100 numbers at most. Output For each group, print out the sum of high-precision numbers (one value in a line). All zeros after the decimal point located behind the last non-zero digit must be discarded Sample Input 4 4.12345678900000000005 -0.00000000012 0 -1300.1 1300.123456789 0.0000000012345678912345 0 1500.61345975

2/2 -202.004285 -8.60917475 0 -218.302869584 200.0000123456789 0 Sample Output 4.12345678888000000005 0.0234567902345678912345 1290 -18.3028572383211