# ============================================================
# Problem 8
# Two words are given.
# Print how many characters are the same
# and in the same position.
# Input:
# ABCDE
# ABXDE
# Output:
# 4
# ============================================================

# ============================================================
# Problem 9
# A word is given.
# Print the number of vowels.
# (A, E, I, O, U)
# Input:
# EDUCATION
# Output:
# 5
# ============================================================

# ============================================================
# Problem 10
# A 4x4 board is given.
# Count how many 'X' characters exist.
# Input:
# XXAB
# CDEX
# FXGX
# HIXX
# Output:
# 6
# ============================================================