"bcdefghij", length: 9
"abcde", length: 5
"pqrstuvwxy", length: 10
Left-only
"bcdefghij", length: 9
"abcde", length: 5
"pqrstuvwxy", length: 10

Right-only
"2345", length: 4
"1234567890", length: 10

Split
"yz123", length: 5
"abcdefghijklmnopqrstuvwxyz1234567890", length: 36

Split
"defghijklmnopqrstuvwxyz", length: 23
"", length: 0
"a", length: 1