"How is it going to ll the entire square"
Correct must be "How is it going to fill the entire square"

Check the other problems of IX Ural Championship, please. There are some mistakes in texts too.

1360: "but still you can ll a square with a line in such a way that there will be no gaps"
    fill
1362: "Like any other rm that oers high salaries for students"
    firm, offers
1363: "He will deal with any incorrectly congured program"
    configured
1363: "and his buddies are preparing a really cool persent for him "
    present
1363: "Ivan's friends have discovered that a tambourine only becomes eective"
    effective
1363: "a le containing the grayscale photo of Ivan"
    file
1363: "Ivan's photo consists of dierent"
    different
1364: "in order to nd the treasures hidden in the graves"
    find
1364: "And she is going to nd another one soon"
    find
1364: "You should'n not revive unnecessary skeletons"
   should not
1364: "at the moment the allseeingeye located her"
   all-seeing-eye
1365: "went to celebrate results of the rst round"
   first
1365: "what this module is indended for"
   intended
1365: "Arithmetic operations are written in prex form"
   prefix
1366: "chief information ocer"
   ???
1366: "you are to nd out the amount"
   find
1369: "to make the maximum prot out of their enterprise"
   profit

1362
"ACM has a clearly dened hierarchical structure."
defined