OPEN "input.txt" FOR INPUT AS #1
answ = -1
speed = 2
INPUT #1, n, m

FOR i = 1 TO n
INPUT #1, x1(i), y1(i), x2(i), y2(i), t1(i), t2(i)
NEXT
FOR i = 0 TO n
beg(i) = ((x1(i)) ^ 2 + (y1(i)) ^ 2) ^ .5
end(i) = ((x2(i)) ^ 2 + (y2(i)) ^ 2) ^ .5
if beg(i)-end(i) > 0 then v(i) = 1
if beg(i)-end(i) < 0 then v(i) = -1

NEXT
t = t + .0001
WEND

CLOSE "input.txt"
OPEN "output.txt" FOR OUTPUT AS #1

PRINT #1, answ
SYSTEM