cd    1980
../dodir
cd ../1981
../dodir
cd ../1982
../dodir
cd ../1983
../dodir
cd ../1984
../dodir
cd ../1985
../dodir
cd ../1986
../dodir
cd ../1987
../dodir
cd ../1988
../dodir
cd ../1989
../dodir
cd ../1990
../dodir
cd ../1991
../dodir
cd ../1992
../dodir
cd ../1993
../dodir
cd ../1994
../dodir
cd ../1995
../dodir
cd ..
