List Sorting

From below list, where First number of first Row (0) is X coordinate and next number of same row (0) is No of times X coordinate is repeating (here 3 times).
Then next rows  from 1 to 3 (3 steps) are Y, Z coordinate (e.g. y=0,z=49.165 then y=1.331, z=49.213 etc)...like that it is repeating...I want to arrange in X, Y, Z coordinate list.

-317.169,3
0,49.165
1.331,49.213
0,49.213
-317.135,4
0,49.119
1.368,49.167
1.57,49.213
0,49.213
-317.101,4
0,49.072
1.366,49.121
1.776,49.213
0,49.213
-317.068,4
0,49.026
1.364,49.074
1.983,49.213
0,49.213
-317.034,4
0,48.979
1.363,49.028
2.19,49.213
0,49.213
-317,4
0,48.933
1.361,48.981
2.397,49.213
0,49.213
-316.967,4
0,48.887
1.36,48.935
2.603,49.213
0,49.213
-316.933,4
0,48.84
1.358,48.888
2.81,49.213
0,49.213
-316.798,5
0,48.654
1.352,48.702
2.86,49.039
3.204,49.213
0,49.213