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Bessie has spilled her collection of N (1 <= N <= 80) blue and orange
cowbeads (represented as 1s and 0s, respectively, in the human world) on
the floor. She cleans up the mess by arranging the beads into a long line.
She then counts the number of times a blue bead is next to an orange bead
and vice versa, but is not sure if she is correct. Write a program to
validate Bessie's count.
PROBLEM NAME: countbead
INPUT FORMAT:
* Line 1: A single integer: N
* Line 2: Line 2 contains N integers, each of which is 0 or 1
SAMPLE INPUT (file countbead.in):
6
1 0 0 1 1 1
INPUT DETAILS:
There are six beads in total: the first bead in the line is a blue bead,
followed by two orange beads, and finally by three blue beads.
OUTPUT FORMAT:
* Line 1: A single integer describing the number of occurrences that a
        blue bead is next to an orange bead and vice versa.
SAMPLE OUTPUT (file countbead.out):
2
OUTPUT DETAILS:
There are two times in the line that two differently colored beads are next
to each other.has spilled her collection of N (1 <= N <= 80) blue and orange
cowbeads (represented as 1s and 0s, respectively, in the human world) on
the floor. She cleans up the mess by arranging the beads into a long line.
She then counts the number of times a blue bead is next to an orange bead
and vice versa, but is not sure if she is correct. Write a program to
validate Bessie's count.
PROBLEM NAME: countbead
INPUT FORMAT:
* Line 1: A single integer: N
* Line 2: Line 2 contains N integers, each of which is 0 or 1
SAMPLE INPUT (file countbead.in):
6
1 0 0 1 1 1
INPUT DETAILS:
There are six beads in total: the first bead in the line is a blue bead,
followed by two orange beads, and finally by three blue beads.
OUTPUT FORMAT:
* Line 1: A single integer describing the number of occurrences that a
        blue bead is next to an orange bead and vice versa.
SAMPLE OUTPUT (file countbead.out):
2
OUTPUT DETAILS:
There are two times in the line that two differently colored beads are next
to each other.