INSTANCES = [(5, 5)]
TASKS = [[(1, 21), (0, 53), (4, 95), (3, 55), (2, 35)],
         [(0, 21), (3, 52), (4, 16), (2, 26), (1, 71)],
         [(3, 39), (4, 98), (1, 42), (2, 31), (0, 12)],
         [(1, 77), (0, 55), (4, 79), (2, 66), (3, 77)],
         [(0, 83), (3, 34), (2, 64), (1, 19), (4, 37)]]