Week 1 Sheet Solution

A- https://ideone.com/EPgumZ
B- https://ideone.com/JtbF2C
C- https://ideone.com/bGBYbF
D- https://ideone.com/i80zq2
E- https://ideone.com/vR9GII
F- https://ideone.com/D93GZB
G- https://ideone.com/RNr6Tf
H- https://ideone.com/jU3MFM
I- https://ideone.com/IgfFZ8
J- https://ideone.com/PAw8eZ
K- https://ideone.com/Y83GP7
L- https://ideone.com/2cAV88