Case #1: yes
Case #2: no
Case #3: no
Case #4: yes
Case #5: yes
Case #6: yes
Case #7: yes
Case #8: yes
Case #9: yes
Case #10: yes
Case #11: yes
Case #12: yes
Case #13: yes
Case #14: yes
Case #15: yes
Case #16: yes
Case #17: yes
Case #18: yes
Case #19: yes
Case #20: no
Case #21: no
Case #22: no
Case #23: no
Case #24: no
Case #25: no
Case #26: no