  We study the data on mean hadron yields and contrast the chemical freezeout
conditions in p+p, p+Pb and Pb+Pb at the Large Hadron Collider (LHC) energies.
We study several schemes for freezeout that mainly differ in the way
strangeness is treated: i. strangeness freezes out along with the non-strange
hadrons in complete equilibrium (1CFO), ii. strangeness freezes out along with
non-strange hadrons with an additional parameter $\gamma_S$ accounting for
non-equilibrium production of strangeness (1CFO+$\gamma_S$), and iii.
strangeness freezes out earlier than non-strange hadrons and in thermal
equilibrium (2CFO). A comparison of the chisquares of the fits indicate a
dependence of the freezeout scheme on the system size. The minimum bias p+p and
different centralities of p+Pb and peripheral Pb+Pb data prefer 1CFO$+\gamma_S$
with $\gamma_S$ approaching unity as we go from p+p to central p+Pb and
peripheral Pb+Pb. On the other hand, the mid-central to central Pb+Pb data
prefer 2CFO over 1CFO+$\gamma_S$. Such system size dependence of freezeout
scheme could be an indication of the additional interaction in Pb+Pb over p+Pb
and p+p.
