Test case #1: not a closed surface Test case #2: closed surface, volume=2 Test case #3: not a closed surface Test case #4: not a closed surface Test case #5: closed surface, volume=1 Test case #6: not a closed surface Test case #7: not a closed surface Test case #8: closed surface, volume=2 Test case #9: closed surface, volume=3 Test case #10: not a closed surface Test case #11: not a closed surface Test case #12: closed surface, volume=3 Test case #13: closed surface, volume=16 Test case #14: not a closed surface Test case #15: closed surface, volume=25 Test case #16: closed surface, volume=8 Test case #17: closed surface, volume=8 Test case #18: closed surface, volume=4 Test case #19: closed surface, volume=4 Test case #20: not a closed surface Test case #21: not a closed surface Test case #22: not a closed surface Test case #23: closed surface, volume=40 Test case #24: not a closed surface Test case #25: closed surface, volume=4 Test case #26: closed surface, volume=4 Test case #27: closed surface, volume=4 Test case #28: closed surface, volume=4 Test case #29: closed surface, volume=4 Test case #30: closed surface, volume=4 Test case #31: closed surface, volume=3 Test case #32: not a closed surface Test case #33: closed surface, volume=2 Test case #34: not a closed surface Test case #35: not a closed surface Test case #36: closed surface, volume=1 Test case #37: not a closed surface Test case #38: not a closed surface Test case #39: closed surface, volume=2 Test case #40: closed surface, volume=3 Test case #41: not a closed surface Test case #42: not a closed surface Test case #43: closed surface, volume=3 Test case #44: closed surface, volume=16 Test case #45: not a closed surface Test case #46: closed surface, volume=25 Test case #47: closed surface, volume=8 Test case #48: closed surface, volume=8 Test case #49: closed surface, volume=4 Test case #50: closed surface, volume=4 Test case #51: not a closed surface Test case #52: not a closed surface Test case #53: not a closed surface Test case #54: closed surface, volume=40 Test case #55: not a closed surface Test case #56: closed surface, volume=4 Test case #57: closed surface, volume=4 Test case #58: closed surface, volume=4 Test case #59: closed surface, volume=4 Test case #60: closed surface, volume=4 Test case #61: closed surface, volume=4 Test case #62: closed surface, volume=3 Test case #63: not a closed surface Test case #64: not a closed surface Test case #65: closed surface, volume=1 Test case #66: closed surface, volume=1 Test case #67: closed surface, volume=2 Test case #68: not a closed surface Test case #69: not a closed surface Test case #70: closed surface, volume=8 Test case #71: not a closed surface Test case #72: closed surface, volume=49 Test case #73: closed surface, volume=7 Test case #74: not a closed surface