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We chose an initial metallicity of $Z=0.02$ with a mixture taken from \citet{Asplund:2005}. We adopt the OPAL opacity tables \citep{Iglesias:1996} accounting for the carbon- and oxygen- enhanced opacities during helium burning \citep[Type 2 OPAL,][]{Iglesias:1993}.  Convective regions are calculated using the mixing length theory (MLT) in the \citet{Henyey:1965} formulation with $\alphaMLT=1.6$. Transport of angular momentum in convective regions is accounted for using the resulting MLT diffusion coefficient (turbulent diffusivity), which is generally very high and leads to rigid rotation in our convective zones.   The boundaries of convective regions are determined using the Ledoux criterion. Semiconvection is accounted for in the Langer prescription \citep{Langer:1983,Langer:1985} with an efficiency $\alphasc=$0.003.   A step function overshooting extends for a distance 0.2$\hp$ 0.2 pressure scale heights  the mixing region beyond the convective boundary during core H-burning. %MC: Check if it's also extending core He-burning  We account for gravitational settling and chemical diffusion \citep{Paxton2011}.