"CODE" 34032; "PROCEDURE" ICHROW(L, U, I, J, A); "VALUE" L,U,I,J; "INTEGER" L,U,I,J; "ARRAY" A; "BEGIN" "REAL" R; "FOR" L:= L "STEP" 1 "UNTIL" U "DO" "BEGIN" R:= A[I,L]; A[I,L]:= A[J,L]; A[J,L]:= R "END" "END" ICHROW "EOP"