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2014-03-08T11:10:56+02:00
A=18-3=15
b=18:2=9
c=18:3=6
a+b+c=15+9+6
a+b+c=24+6
a+b+c=30
4 5 4
2014-03-08T11:46:22+02:00
A=18-3=15
b=18:2=9
c=18:3=6
a+b+c=15+9+6
a+b+c=24+6
a+b+c=30
1 4 1