1. 0
2. 9
3. 11
4. 81
81
1. 13 and 52
2. 132 and 96
3. 18 and 126
4. 56 and 45
56 and 45
1. 37
2. 20
3. 15
4. 12
12
1. 3
2. 2
3. 0
4. 5
0
1. 0
2. 1
3. 4
4. 7
0
1. 16/29
2. 16/29
3. 7/12
4. 16/29
16/29<7/12<5/8<3/4<13/16
1. -2
2. -1
3. 1
4. 2
-1
1. 874
2. 875
3. 876
4. 877
874
1. 1
2. 3
3. 5
4. 7
3
1. 11
2. 17
3. 13
4. 23
13