SIZE 10X10 LINE_NUM 7 LINE#1 (8,1)-(8,8) LINE#2 (2,4)-(2,9) LINE#3 (7,6)-(0,9) LINE#4 (6,6)-(0,8) LINE#5 (9,3)-(5,6) LINE#6 (1,1)-(7,2) LINE#7 (1,2)-(6,2)