Consider the vector field shown in the figure below together with the paths , , and .

Graph of a constant vector field pointing horizontally to the right.  Curve C1 is a diagonal line with a length 1.67 extending from the top center of the graph down to the left, moving down about 1.5 units and to the left 0.75 units.  Curve C2 is a vertical line extending from a point to the right side of the graph upwards 1.5 units.  Curve C3 is a horizontal line segment with a length 1.5, extending along the bottom of the graph from right to left.
(Note: For the vector field, vectors are shown with a dot at the tail of the vector.)

Arrange the line integrals , and in ascending order:

.

You can earn partial credit on this problem.