Pointwise sum of Time series

Prabhgun isnt good with time management but she was assigned a task to add two Time-Waves. Help her perform the task. Given $N$ lists, Each containing information about the $i$th wave, print the final wave produced after a pointwise sum of all the waves. Ex- \ Given $N$ = 2\ ``` Wave 1 = [(0,0),(5,2),(10,0)] 2 _____ 1 | | 0_____| |___ 0123456789012 ``` ``` Wave 2 = [(0,0),(3,1),(7