A=1, B=2, C=3, D=4, E=5, F=6, G=7, H=8, I=9......
Each string is coded as: Sum of (Position of each letter in string*Position of each letter kin alphabet)
CHINA = 1*3+2*8+3*9+4*14+5*1 = 107
JAPAN = 1*10+2*1+3*16+4*1+5*14 = 134
NEPAL = 1*14+2*5+3*16+4*1+5*12 = 136
INDIA = 1*9+2*14+3*4+4*9+5*1 = 90