Weekly rest compensation

So this pattern for example would be illegal■■?

Week 0 regular (60 hours rest)
Week 1 reduced (42 hours rest)
Week 2 reduced (42 hours rest)
Week 3 regular (60 hours rest)
Week 4 reduced (42 hours rest)
Week 5 reduced (42 hours rest)
Week 6 regular (60 hours rest)
And so on

I would say that was legal as i would need to compensate 6 hours for weeks 3 and 6 (51 hours) so im well under by having the 60 hours rest ■■?

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