documentclass[10pt]{article}

usepackage{yfonts,color,lettrine,pdfcolparallel}
usepackage[top=.5in, bottom=1in, left=1in, right=1in]{geometry}

begin{document}

begin{Parallel}{.47textwidth}{.47textwidth}
ParallelLText{input{cv/doc1.tex}}
ParallelRText{input{dr/doc1.tex}}
ParallelPar
newpage
ParallelLText{input{cv/doc2.tex}}
ParallelRText{input{dr/doc2.tex}}
ParallelPar
newpage
ParallelLText{input{cv/doc3.tex}}
ParallelRText{input{dr/doc3.tex}}
ParallelPar
newpage
ParallelLText{input{cv/doc4.tex}}
ParallelRText{input{dr/doc4.tex}}
ParallelPar
newpage
ParallelLText{input{cv/doc5.tex}}
ParallelRText{input{dr/doc5.tex}}
ParallelPar
newpage
end{Parallel}
end{document}

%----184768b.tex-------%
documentclass{article}
usepackage[paperwidth=11cm,paperheight=29.7cm,nohead,nofoot]{geometry}
pagestyle{empty}
usepackage{kantlipsum}

begin{document}
thispagestyle{empty}
kant
end{document}

%------184768c.tex --------%
documentclass{article}
usepackage[paperwidth=11cm,paperheight=29.7cm,nohead,nofoot]{geometry}
pagestyle{empty}
usepackage{lipsum}

begin{document}
thispagestyle{empty}
lipsum[1-30]
end{document}

documentclass[a4paper]{article}

usepackage{pdfpages}
usepackage{pgffor}

begin{document}

foreach i in {1,2,...,4}{
includepdfmerge[nup=2x1]{104768b, i, 104768c, i}}

foreach i in {5,6,...,8}{
includepdf[nup=2x1, pages={{},i}]{104768c}}

end{document}

includepdfmerge[nup=2x1]{104768b, {1-4}, 104768c, {1-4}}

foreach i in {1,2,...,4}{
includepdfmerge[nup=2x1]{104768b, i, 104768c, i}}

foreach i in {5,6,...,8}{
includepdf[nup=2x1, pages={{},i}]{104768c}}