600:15=40
78:13=6
54:18=3
98:14=7
980:14=70
780:13=60
540:18=30
540:180=3
980:140=7
600:150=4
780:130=6
600:15=40
78:13=6
54:18=3
98:14=7
980:14=70
780:13=60
540:18=30
540:180=3
980:140=7
600:150=4
780:130=6