println("Hello world!") col = [10 2; 3 20; 30 4; 40 55] colPlus2 = col .+ [2] colPlus25 = col .+ [2 5] println(colPlus2) println(colPlus25) println(colPlus25[1,1]) # first row, first column → 10 println(colPlus25[4,2]) # fourth row, second column → 55 for i in 1:size(colPlus25, 1) println("Row $i: ", colPlus25[i, :]) for j in 1:size(colPlus25, 2) println("colPlus25[$i,$j] = ", colPlus25[i,j]) println("string inter: colPlus25[$i,$j] = $(colPlus25[i,j])") end end