How can this be done in Selenium IDE?

Question

selenium

My view of the pseudo-language console application source code
a = getNumber1()
b = getNumber2()
c = getNumber3()
if(a <= 0 || b <= 0 || c <= 0) return "this is not a triangle";
if(a + b <= c || a + c <= b || b + c <= a) return "this is not a triangle";
if(a == b && b == c) return "equilateral triangle";
if(a == b && b != c || a == c && c != b || b == c && c != a) return "equilateral triangle";
return "this is a triangle with all sides different in length";

Positive tests
3 3 5 - isosceles triangle
3 5 3 - isosceles triangle (aimed at detecting defects associated with incorrect extraction of initial data into internal variables or subsequent use of these variables)
5 3 3 - isosceles triangle (aimed at detecting defects associated with incorrect extraction of initial data into internal variables or subsequent using these variables)
5 5 5 - equilateral triangle
2147483647 2147483647 1 - isosceles triangle - check operation with integer
overflow integers (2147483647 + 1 = -2147483648, 2147483647 = 2^31 - 1)
1 2147483647 2147483647 - isosceles triangle - check operation with integer overflow (2147483647 + 1 = -2147483648, 2147483647 = 2^31 - 1)
4294967295 4294967295 = 0, 4294967295 = 2^32 - 1)
4294967295 1 4294967295 - isosceles triangle - check operation with integer overflow for the case of unsigned numbers (4294967295 + 1 = 0, 4294967295 = 2^32 - 1)
1 4294967295 - isosceles triangle check operation with integer overflow for the case of unsigned numbers (4294967295 + 1 = 0, 4294967295 = 2^32 - 1)
3.0 3.0 5 - processing of integer values ​​in the format of fractional values ​​(option 1) - the specification for the application
is
required clarification of specification for application
3\t3\t5 - Tab symbol between entered values ​​- clarification of specification for application
3 3 5 is required - 2 spaces between entered values ​​- clarification of specification for application is required
3 3 5 - 3 spaces between entered values ​​- specification clarification for application
Negative tests
4 2 3 - a triangle in which all sides differ in length
5 2 1 - two sides are too short (option 1)
2 5 1 - two sides are too short (option 2)
2 1 5 - two sides are too short (option 3)
2 2 4 - two sides are too short - checking strict inequalities (option 1)
2 4 2 - two sides are too short - check for strict inequalities (option 2)
4 2 2 - two sides are too short - check for strict inequalities (option 3)
-1 -1 3 - check for cutting off negative values ​​for numbers 1 and 2 ( possibly redundant, because code that checks for too short sides should cut off such data: (-1) + (-1) > 3 - false)
-1 3 -1 - check for clipping negative values ​​for numbers 1 and 3 (probably redundant, because the code that checks for too short sides should cut off such data: (-1) + (-1) > 3 - false)
0 2 2 - check for zero values ​​for the number 1 (probably redundant, because the code that checks too short sides according to strict inequalities should cut off such data: 0 + 2 > 2 - false)
2 0 2 - check for zero values ​​for the number 2 (possibly redundant, because the code that checks too short sides according to strict inequalities must cut off such data: 0 + 2 > 2 - false)
2 2 0 - check for zero values ​​for the number 3 short sides by strict inequalities should cut off such data: 0 + 2 > 2 - false)
0.3 0.3 5 - correct processing of fractional values ​​- issuing an error message (option 1)
0.3 5 0.3 - correct processing of fractional values ​​- issuing an error message (option 2)
5A 3 3 - non-numerical values ​​(option 1)
3 5A 3 - non-numerical values (option 2)
3 3 5A - non-numeric values ​​(option 3)
2 2 - not enough data - 2 numbers
2 - not enough data - 1 number
"blank input" - not enough data - "blank input"