rows = 64 columns = 64 print "P3" print rows, columns print "255" topEdgeRow = 21 botEdgeRow = (rows - 1) - 21 leftEdgeCol = 21 rightEdgeCol = (columns - 1) - 21 y = 0 while (y < rows): x = 0 while (x < columns): if ((y == topEdgeRow) or (y == botEdgeRow)): print "0 0 255", elif ((x == leftEdgeCol) or (x == rightEdgeCol)): print "0 0 255", else: print "255 255 255", x += 1 print y += 1