1
What are the missing numbers in the number sequence below?

| X | Y | |
| A | 53,736 | 51,944 |
| B | 53,478 | 52,090 |
| C | 53,993 | 51,832 |
| D | 52,995 | 52,121 |
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A
-
B
-
C
-
D

| X | Y | |
| A | 53,736 | 51,944 |
| B | 53,478 | 52,090 |
| C | 53,993 | 51,832 |
| D | 52,995 | 52,121 |
A
B
C
D