added files

examples/2x2.txt

examples/3x3.txt

examples/4x4.txt

examples/4x4_divdiff.txt

examples/4x4_divdiff2.txt

examples/5x5.txt

examples/6x6.txt

examples/6x62.txt

examples/7x7.txt

examples/7x72.txt

examples/8x8.txt

examples/8x82.txt

examples/example.txt

examples/examples.zip

src/AllPermutation.java

src/Buttons.java

src/Cage.java

src/Column.java

src/Container.java

src/FileRead.java