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Cod sursa(job #125088)
var a:array[1..32000] of integer;
n,m,k,x,y,i,j,d,p:longint;
f,g:text;
begin
assign(f,'stergeri.in');
assign(g,'stergeri.out');
reset(f);
rewrite(g);
readln(f,n,m,k);
for i:=1 to n do a[i]:=i;
for i:=1 to m do begin
readln(f,x,y);
d:=y-x;
for j:=x to n-x+1 do begin
p:=a[j];
a[j]:=a[j+d+1];
a[j+d+1]:=p;
end;
n:=n-(d+1);
end;
write(g,a[k]);
close(f);
close(g);
end.