Write a program that finds the first word appearing in two consecutive lines of a given text.
Input
The program reads a text composed of lines, maybe verses of a poem.
Output
The program outputs "Found: " followed by a word such that there are two consecutive lines that contain that word, no earlier pair of consecutive lines has a common word, and the appearance in the second line is as early as possible; or "Found nothing" in case such a word does not exist.
Input
hi there hello there
Output
Found: there
Input
as an unperfect actor on the stage who with his fear is put beside his part or some fierce thing replete with too much rage whose strengths abundance weakens his own heart so i for fear of trust forget to say the perfect ceremony of loves rite
Output
Found: with
Input
word and occurs early there is a yes in this line of this text and yes also in this line we can see it and a yes occurs also in this line
Output
Found: yes
Input
shall I compare thee to a summers day thou art more lovely and more temperate rough winds do shake the darling buds of may and summers lease hath all too short a date
Output
Found nothing
Input
hello there world
Output
Found nothing
Input
hello hi there hello hello there
Output
Found: hello