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13 88 13 89 13 90 13 91 13 92 13 93 13 94 13 95 13 96 13 97 13 98 13 99 14 00 14 01 14 02 14 03 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid