In a classroom, thirty students were sitting in thirty chairs, which were arranged in the form of a 6 x 5 grid, with six rows and five columns. Each student has an ID number, which is a distinct integer from among 1 to 100. Further, the difference between the ID numbers of any two students sitting immediately next to each other in the same row was 7 and the difference between the ID numbers of any two students sitting immediately next to each other in the same column was 2