Integer input$\_$num is read from input. Write a while loop that reads values from input and casts the values into integers, until the integer that is less than or equal to $1$ is read. In each iteration:

Update int$\_$sum with the sum of int$\_$sum and input$\_$num.

Then, read the next integer from input into variable input$\_$num.

The integer that is less than or equal to $1$ should not be included in the sum.