Suggested exercises for PrePALS: 55, 57, 59, 61, 63, 69, 71, 77, 79, 81, 83, 87, 91, 93, 95, 97, 101, 103, 109, 111, 115, 117, 121, 123, 127, 129, 137, 139, 140, 141, 142, 143