if len(problems) > 5:

return "Error: Too many problems."

formattedProblems = []

for problem in problems:

p = Problem(problem)

returnString = p.parseProblemString()

if returnString:

return returnString

p.formatProblem(solve)

formattedProblems.append(p)

numProblems = len(formattedProblems)

numLines = len(p.formattedLines)

finalStrings = []

for i in range(numLines):

for j in range(numProblems):

finalStrings.append(formattedProblems[j].formattedLines[i])

if j != (numProblems - 1):

finalStrings.append(' ' * 4)

else:

if i != (numLines - 1):

finalStrings.append('\n')

final = ''.join(finalStrings)

print(finalStrings)

print(final)

return final

return None