1.3 rle: String operations II Write a program rle that uses a simple method to compress strings. rle takes a single argument and looks for repeated characters. Each repeated sequence of a letter or punctuation mark is reduced to a single character plus an integer indicating the number of times it occurs. Thus, "aaa becomes "a3" and "ab" becomes "albi". If the compressed string is longer than the original string, rle must print the original string instead. If the input string contains digits, rle must print "error" and nothing else. Usage $ ./rle aaaaaa a6 s /rle aaabcccc..a a3bic4.2a1 $ ./rle aaabab aaabab $ ./rle alb2 error