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perl -MTime::Local -lane"END{print$t[1]-$t[0]}$F[1]--;push@t,timelocal +@F[5,4,3,2,1,6]"
perl -MTime::Local -lane"END{print$t}$F[1]--;$t+=($.*2-3)*timelocal@F[ +5,4,3,2,1,6]"