20
0 991 900 962 963 968 900 918 977 924 975 915 934 959 980 973 992 944 918 907
989 0 971 948 981 985 937 904 985 968 929 972 905 931 988 913 969 952 1000 940
954 907 0 971 994 906 988 966 929 937 938 979 917 911 913 908 971 909 943 958
994 996 959 0 924 907 959 996 933 955 952 942 903 966 940 991 995 937 999 977
937 992 993 910 0 934 906 935 958 902 924 937 926 917 909 948 994 918 978 933
1000 986 991 916 955 0 910 934 920 992 988 908 997 920 910 959 995 989 948 958
972 960 975 923 916 975 0 990 998 916 966 950 926 941 968 900 972 910 966 986
988 918 982 982 920 907 1000 0 950 938 958 932 907 907 971 915 964 936 993 950
935 938 904 951 941 997 995 977 0 930 967 948 917 934 960 979 902 965 959 949
997 993 996 971 977 929 985 989 954 0 937 901 917 939 984 938 945 908 927 963
955 978 975 911 920 910 974 937 984 965 0 978 933 911 996 906 974 991 970 921
924 970 960 983 915 993 995 967 950 915 953 0 975 959 948 917 973 919 977 946
949 943 909 920 953 938 952 998 972 949 973 902 0 954 980 953 945 958 955 943
986 974 946 984 915 910 972 990 975 931 982 957 932 0 1000 921 944 991 925 954
935 995 997 963 910 999 940 968 969 926 900 942 932 915 0 942 923 902 995 994
938 946 930 977 933 994 971 998 953 969 964 958 997 996 965 0 953 966 916 962
990 918 955 969 979 930 967 915 943 972 900 973 906 933 981 915 0 965 956 913
924 924 942 991 942 954 961 903 938 980 941 939 963 957 908 927 901 0 937 917
901 994 946 921 928 996 985 991 987 990 941 944 963 941 991 995 945 998 0 917
958 961 970 918 962 934 928 912 956 924 968 927 926 970 992 991 916 951 997 0