ਕੇਸ

a_1
a_9
a_12
a_15
a_21
a_28
a_2
44
111
a_6
a_7
a_10
a_13
a_16
a_22
a_26
a_5
11
55
a_8
a_11
a_14
a_20
a_27
a_18
a_4
33
111