cities.json

{
    "BA": {
        "BE": 91,
        "KA": 191,
        "RV": 180,
        "Z": 85
    },
    "BE": {
        "BA": 91,
        "Z": 120
    },
    "F": {
        "MA": 85,
        "N": 230,
        "S": 210
    },
    "KA": {
        "BA": 191,
        "MA": 67,
        "S": 64
    },
    "M": {
        "N": 170,
        "RV": 178,
        "UL": 123
    },
    "MA": {
        "F": 85,
        "KA": 67,
        "N": 230,
        "S": 135
    },
    "N": {
        "F": 230,
        "M": 170,
        "MA": 230,
        "S": 210,
        "UL": 171
    },
    "RV": {
        "BA": 180,
        "M": 178,
        "S": 195,
        "UL": 86,
        "Z": 91
    },
    "S": {
        "F": 210,
        "KA": 64,
        "MA": 135,
        "N": 210,
        "RV": 195,
        "UL": 107
    },
    "UL": {
        "M": 123,
        "N": 171,
        "RV": 86,
        "S": 107
    },
    "Z": {
        "BA": 120,
        "BE": 85,
        "RV": 91
    }
}