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k2s2p j2s2 i2s2p4 h2s2p g2s2
vbs2 ubs2p4 tbs2p sbs2 rbs2p4
6kr2p4 5kr2p 4kr2 3kr2p4 2kr2p
huq2p guq2 fuq2p4 euq2p duq2