Given a red tape and a set of blue tapes. Tape is represented by interval. We paste red tape on the line first and paste blue tapes onto the line later. If blue tapes have overlap with red tape, the overlapping part will be covered by blue tapes. You need to return a boolean to indicate whether red tape is visible at the end.

Ex: [12,21] and [-1,6] -1,-6 and [12,21]

Blue ~~~~~~~~~~~~~~~~~~~~~~~~~ [12 21]
Red ===============================
[-1,6] |-----|-----|-----|-----|-----|-----|-----|-----|-----| 0 1 2 3 4 5 6 7 8 9