surface_n = int(input())
for i in range(surface_n):

    land_x = list([int(j) for j in input().split()])

    print(list(enumerate(land_x)), file=sys.stderr, flush=True)


Standard Error Stream:
[(0, 0), (1, 100)]
[(0, 1000), (1, 500)]
[(0, 1500), (1, 1500)]
[(0, 3000), (1, 1000)]
[(0, 4000), (1, 150)]
[(0, 5500), (1, 150)]
[(0, 6999), (1, 800)]