Angles A, B, and C are angles in standard position with the following properties. cscA=csc pi/4, 0 less than or equal to A, A less than or equal to 2pi, A is not equal to pi/4.

cotB= cot 3pi/4, 0 less than or equal to B, B less than or equal to 2pi, B is not equal to 3pi/4.

secC= sec 8pi/5, 0 less than or equal to C, C less than or equal to 2pi, C is not equal to 8pi/5.

If the value of A+B+C can be expressed in the form a(pi)/b, then the values of a and b are ___ and ___.