| 72 db | C | A

| 0 db

| 72 db | B | D

| 72 db | | B

| 0 db

| 72 db | B | D

| 73 db | | C

| 0 db

| 0 db

| 73 db | | D

| 72 db | C | A

| 72 db | | B

| 0 db

| 73 db | D | C

| 72 db | | B

| 72 db | | D

| 73 db | D | D

| 73 db | D | D

| 73 db | D | C

| 72 db | B | C

| 72 db | | B

| 73 db | D | C

| 73 db | | D

| 72 db | | B