MathDB

On a closed track, clockwise, there are five boxes

A, B, C, D

and

E

, and the length of the track section between boxes

A

and

B

1

km, between

B

and

C

5

km, between

C

and

D

2

km, between

D

and

E

10

km, and between

E

and

A

3

km. On the track, they drive in a clockwise direction, the race always begins and ends in the box. What box did you start from if the length of the race was exactly

1998

km?

Problem Statement