from re import*
r=len
q='(?<=[^\s])\s+(?=[^\s])'
T,S='~ '
f=lambda x:'\n'.join(k[:-1]+[sub(S,T,w:=k[-1])]+[S*j[0]+T+S*(r(w)-j[0]+1)for _ in range(sum(r(findall(q,n)[0])for n in k[:-1])-w.count(S)+(w.count(S)==1))]if(j:=(lambda x:[i for i in range(r(x))if i and-~i<r(x)and findall('^(?:[^\s]|\s)\s+$',''.join(x[i]))*(Z:=lambda z:any(d!=S for d in x[i+z][1:]))(-1)*Z(1)])([*zip(*(k:=x.split('\n')))]))else(sub(q,lambda x:T*r(x.group()),l)for l in k))
 
print(f("""00     00
 00   00 
  000 0  """))
print(f("""^^^        ^
   ^^      ^
     ^^^   ^
        ^ ^ """))
print(f("""@@@ @@@
  @ @  """))
print(f("""#   #
# # #
### #"""))
print(f("""xx xx
x   x
x   x
 xx  """))
print(f("""2 2
2 2"""))
print(f("""#      #
 #    # 
  ####  """))
print(f("""!!!        !!
   !!      ! 
     !!!   ! 
        !!!! """))
print(f("""4   4
4 4 4
44444"""))
print(f("""  B B  
 B   B 
B     B
B     B
 B   B 
  BBB  """))
print(f("""sss  sss
  s  s  
   s s  
ssssssssss"""))

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