Compose a melody with the specified chord progression.
'F', 'C', 'F', 'C', 'G7', 'C', 'G7', 'C'  
X:1
L:1/8
M:2/4
K:C
|:"F" ff ff |"C" ec cc |"F" ff ff |"C" e2 gg |"G7" dg gg |"C" eg gg |"G7" gf ed |"C" c2 c2 :|  