20
0 0 0 10
18 0 0 10
36 0 0 10
54 0 0 10
72 0 0 10
90 0 0 10
108 0 0 10
126 0 0 10
144 0 0 10
162 0 0 10
180 0 0 10
198 0 0 10
216 0 0 10
234 0 0 10
252 0 0 10
270 0 0 10
288 0 0 10
306 0 0 10
324 0 0 10
342 0 0 10