( ( ( ( ( ( ( ( ( ( ( (lfigure sequence of insertions in red-black tree(ainitial tree(binsertion of (cinsertion of which causes double red(dafter restructuring(einsertion of which causes double red( after recoloring (the root remains black)(ginsertion of (hinsertion of (iinsertion of which causes double red(jafter restructuring(kinsertion of which causes double red(lafter recoloring (continues in figure