Case #1: YES Case #2: YES Case #3: YES Case #4: YES Case #5: YES Case #6: YES Case #7: YES Case #8: YES Case #9: YES Case #10: YES Case #11: NO Case #12: YES Case #13: YES Case #14: YES Case #15: YES Case #16: NO Case #17: YES Case #18: YES Case #19: YES Case #20: YES