In a class of 35 students, each student has registered for 6 courses, with each course having a maximum of 100 marks. The average percentage marks of all 35 students across all courses they have registered for is 85%. Two students apply for revaluation in one of their courses. If none of their marks decrease, and the average of all 35 students across all courses becomes 85.05%, what is the maximum possible increase in marks for either of the two students?