iterate the values and assign to user

Im trying to write a expression rule where there are two ri variables , one ri variable has type list of users and other ri variable is of type list of numbers.

something like below

ri!users: {"abc","def"}

ri!numbers: {1,2,3,4,5,6,7}

i have a use case where i should need to receive list of dictionary in below format

{

user:"abc",

number:1

},

{

user:"def",

number:2

},

{

user:"abc",

number:3

},

{

user:"def",

number:4

},

{

user:"abc",

number:5

},

{

user:"def",

number:6

}

.

.

. etc

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