The ORD-MIN Function
The ORD-MIN function returns a value that is the ordinal number of the argument-1
that contains the minimum value. The type of this function is integer.
General Format

Arguments
- If more than one argument-1 is specified, all arguments must be of the same
class, except alphabetic and alphanumeric arguments which may be mixed.
Returned Values
- The returned value is the ordinal number that corresponds to the position
of the argument-1 having the lowest value in the argument-1 series.
- The comparisons used to determine the lowest valued argument are made according
to the rules for relation conditions. See the topic Relation Condition
in the chapter Procedure Division.
- If more than one argument-1 has the same lowest value, the number returned
corresponds to the position of the leftmost argument-1 having that value.