Two kangaroos jump along a number line at the same time, and you need to know whether they will ever land on the same spot. The first starts at x1 and jumps v1 units each time; the second starts at x2 and jumps v2 units each time. Return YES if their positions match after the same number of jumps, otherwise return NO.

def number_line_jumps(x1: int, v1: int, x2: int, v2: int) -> str: