7 2
a -7
b 6
c -2
d 6
e 0
f 1
g 7

7 2
a -7
b 12
c -2
d 6
e 0
f 1
g 7

6 1
a 1
b 1
c 1
d 1
e 1
f 1

6 1
a 1
b 2
c 3
d 4
e 5
f 6

6 1
a 3
b -4
c -5
d -6
e 234
f -11

6 5
a 3
b -4
c -5
d -6
e -3
f 42


ans:
d 4
d 4
d 4
f 4
c 4
c 4
a 4

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