10 10 10 3
dwoiyobaex
0 0
0 1
0 2
1 1
1 2
2 2
0 1
1 1
0 1
0 1
woi 3 4
yaw 2 6
bae 0 3
qfp 2 6
kqj 4 8
yut 4 6
dwo 2 5
vut 3 9
wgl 2 6
bkr 1 8