MHIAW5Y7FZ77GIO3LCTMFVFO5OO5Y7G6BJ2TGAINLHHFJSLTH6BQC
2WCRFGIG5PSVW6PSVJEC4RVQADWMWXM7SX4VCYGFPPPC6UN6N7ZAC
QHTTPQTALS2XJVJJ6CFOM5TKE7X3JJC73R465P2D6UCXD5BIIVXQC
RSWQPKYWMLVXPFAGSCLBEKSXR2VMBHQDWCHTZ3DNILL475H7MHTQC
radius = m * LEAF_SIZE / 2
radius = m * (LEAF_SIZE - PADDING) / 2 - 1