Zigzag by hallvabo

s=raw_input()
n=int(s[0])
k=2*~-n
for i in range(n):print''.join(s[1:][j%k in[k-i,i]]for j in range(k*~-n-~i))

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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