One by one dot will briefly appear on the screen.

Your task is to find a dot that will NOT be within the same imagined (vizualized) line (direction) and enter the order of appearance (ordinal number) of this dot on the screen.

There are two possible cases:

1. only one of the dots displayed will NOT be within the same imagined line. In this case, enter the ordinal number (1,2,3 ..) of this dot that is NOT in the same vizualized line.
2. all points are within the same imagined line. In that case, enter 0 as a correct solution.

One by one dot will briefly appear on the screen.

ALL these dots ARE WITHIN the SAME imagined (vizualized) line (direction).

Your task is to find a dot that will have DIFFERENT DISTANCE from the previous and next dots within the same imagined line and enter the order of appearance (ordinal number) of this dot on the screen.

There are two possible cases:

1. only one of the dots displayed within the imaginary line will NOT be displayed at an equal distance in relation to the previous and the next dot. It will be displayed a little closer or a bit further than the other dots. In this case, you should enter the ordinal number (1,2,3 ..) of this dot as the correct solution.
2. all dots are located at an equal distance within the same imaginary (vizualized) line. In that case, enter 0 as a correct solution.

One by one dot will briefly appear on the screen.

All these points will be equidistant from the center of the screen. That is, all the dots will be on the imaginary circle whose center is in the center of the screen. In that case, type the zero (0) as the correct answer.

However, sometimes one of these dots will be at a different distance from the center of the screen. In that case, enter the ordinal number (1,2,3 ..) of this dot as the exact solution.