case 1 after

case 1 before

case 1 before

case 1 before

case 2 after

case 2 before

case 3 after

case 3 before

case 4 after

case 4 before

case 5 after

case 5 before

case 6 after

case 6 after

case 6 after

case 6 before

case 7 after

case 7 before

case 7 after

case 7 before

case 7 after

case 7 before

case 8 after