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We apply a recently developed method (V. A. Dzuba, PRA 90, 012517 (2014); J.S. M. Ginges and V. A. Dzuba, PRA 91, 042505 (2015)) to calculate energy levelsof superheavy elements Uut (Z = 113), Fl (Z = 114), and Fl+. The methodcombines the linearized single-double coupledcluster technigue, the all-ordercorrelation potential method and configuration interaction method. Breit andquantum electrodynamic corrections are included. The role of relativistic andcorrelation effects is discussed. Similar calculations for Tl, Pb and Pb+ areused to gauge the accuracy of the calculations.

All-order calculations of the spectra of superheavy elements E113 and E114