how to split input in to 3 parts

[zagreus 360]

ok i've got an input code that the user enters in to the program but i need to split it in to 3 differnt sections but i cant figure out how to do it can anyone help? e.g. 122131 needs to be 12 21 31

[keystone_paul]

is it always going to be 3 sections of 2 characters each? If so just use

InputString= "1222131"
Part1 = InputString.Substring(0,2)
Part2 = InputString.Substring(2,2)
Part3 = InputString.Substring(4,2)

[zagreus 360]

brilliant thanks