#!/usr/bin/env python3
import sys


ramconfigs = (
    '4g_hynix_1600s',
    '1g_samsung_1600',
    '4g_samsung_1600s',
    '1g_hynix_1600',
    '4g_elpida_1600s',
    '2g_samsung_1600',
    '2g_samsung_1333',
    '2g_hynix_1600',
    '4g_samsung_1600',
    '4g_hynix_1600',
    '2g_elpida_1600s',
    '2g_elpida_1600',
    '4g_elpida_1600',
    '2g_samsung_1600s',
    '2g_hynix_1600s'
)


def main():
    reg = None
    for line in sys.stdin:
        line = line.strip()
        if not line.endswith('(GPIO_LVL3)'):
            continue

        reg = int(line.split(' ')[1], 16)
        break

    if reg is None:
        raise Exceptions("failed to parse gpio registers")

    # GPIO68..GPIO71
    ramcfg = (reg >> 4) & 0xf

    # reverse bit order
    ramcfg = int('{:04b}'.format(ramcfg)[::-1], 2)

    if ramcfg > len(ramconfigs):
        print("unsupported memory configuration %d" % ramcfg)
    else:
        print(ramconfigs[ramcfg])
        

if __name__ == '__main__':
    main()