作業四

paper 65 88 80
size 200 200
repeat A 0 200
{
pen A
line A 10 A 20
line A 25 A 35
line A 40 A 50
line A 55 A 65
line A 70 A 85
line A 90 A 100
line A 115 A 125
line A 130 A 135
line A 145 A 155
line A 160 A 170
line A 175 A 185
line A 190 A 200
}

repeat B 200 0
{
pen B
line B 0 B 200

}