We present the detailed analysis of Hubble Space Telescope 
observations of the spatial distributions of different stellar species in two young compact star clusters in the Large Magellanic Cloud ( LMC ) , NGC 1805 and NGC 1818 .
Based on a comparison of the characteristic relaxation times in their cores and at their half-mass radii with the observed degree of mass segregation , it is most likely that significant primordial mass segregation was present in both clusters , particularly in NGC 1805 .
Both clusters were likely formed with very similar initial mass functions ( IMFs ) .
In fact , we provide strong support for the universality of the IMF in LMC clusters for stellar masses m _ { * } \gtrsim 0.8 M _ { \odot } .